Environment terminology · MLC-0121
Environment terms: S (2,959)
- S Phase ProcessPhase of the cell cycle following G1 and preceding G2 when the entire DNA content of the nucleus is...
- S WaveAn S wave, or shear wave, is a seismic body wave that shakes the ground back and forth perpendicular to the...
- SabineThe Sabine River Basin above Sabine Lake. Louisiana, Texas. Area = 9860 sq.mi.
- SabotageIntentionally destroying something, usually for political or military reasons
- Saccharomyces cerevisiaeA species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's"...
- SacoThe coastal drainage and associated waters from Cape Small, Maine to the Merrimack River Basin Boundary...
- SacramentoThe Sacramento River Basin and drainage into Goose Lake. California, Oregon. Area = 27600 sq.mi.
- Sacrificial Anode1. An easily corroded material deliberately installed in a pipe or tank. The intent of such an installation...
- Sacrococcygeal RegionThe body region between (and flanking) the sacrum and coccyx.
- Saddle stitchinga method of binding where the folded pages are stitched through the spine from the outside, using wire...
- Safe1. Condition of exposure under which there is a "practical certainty" that no harm will result in exposed...
- Safe Drinking WaterWater intended for human use that is free of harmful naturally-occurring and man-made contaminants.
- Safe Drinking Water Act1. To amend the Public Health Service Act to assure that the public is provided with safe drinking water, and...
- Safe Drinking Water Identification SystemContains information about public water systems and their violations of EPA's drinking water regulations.
- Safe Routes to SchoolHelps states and communities assess bike and pedestrian conditions around schools, and then facilitate the...
- Safe Taxiing DeicingApplication of ADF necessary to remove snow or ice to prevent damage to a taxiing aircraft.
- Safe Water1. Water that does not contain harmful bacteria, or toxic materials or chemicals. Water may have taste and...
- Safe Yield1. The annual quantity of water that can be taken from a source of supply over a period of years without...
- SafenerA chemical added to a pesticide to keep it from injuring plants.
- Safer PesticidesPesticides designated as "safer" (or "reduced-risk") by EPA due to favorable characteristics affecting health...
- Safer Product DesignDesign chemical products that are fully effective yet have little or no toxicity.
- Safer Solvent and Reaction ConditionAvoid using solvents, separation agents, or other auxiliary chemicals. If you must use these chemicals, use...
- safetyA judgment of the acceptability of risk (a measure of the probability of an adverse outcome and its severity)...
- Safety & Health CommitteeAn advisory group of employees who assist in the administration and operation of the Region's safety & health...
- Safety & Health Management System CoordinatorA member of the EPA Region 7 staff assigned with the responsibility for overall management of the SHMS, to...
- Safety Device1. Device that meets both of the following conditions: it is not used for planned or routine venting of...
- SAFETY FILMA relatively nonflammable film base that meets ANSI criteria for safety photographic film.
- Safety MarginAmount by which the total projected emissions from all sources of a given pollutant are less than the total...
- Safety-Related ShutdownUnscheduled shutdown of a process unit subject to a compliance option in Table 1B to this subpart (or a...
- Saffir-Simpson Hurricane Wind ScaleThe Saffir-Simpson Hurricane Wind Scale is a 1 to 5 categorization based on the hurricane's intensity at the...
- Saint-Venant EquationsThe equations of continuity of mass and momentum used to model flow in a channel or over a surface.
- Salable Quality GasNatural gas that meets the flow line or collection system operator specifications, regardless of whether such...
- Salaried WorkerIn tabulations that categorize persons as either salaried or self-employed, the salaried category includes...
- SaleTransfer of ownership or control, except that transfer of control shall not constitute a sale for purposes of...
- Sale not for ResaleSale of PCBs for purposes of disposal and for purposes of use, except where use involves sale for...
- Saleable Mineral1. Common variety sand and gravel.
- saleable mineralsA legal term that defines mineral commodities that are sold by contract from the Federal Government. These...
- Sales OilProduced crude oil or condensate measured at the production lease automatic custody transfer (LACT) meter or...
- Sales Ratio1. Sales Ratio = Sales / Total Revenue
- Sales WorkerThese jobs include non-managerial activities that wholly and primarily involve direct sales. Examples of...
- Salic HorizonA salic horizon is a horizon of accumulation of salts that are more soluble than gypsum in cold water. A...
- Saline Estuarine WatersThose semi-enclosed coastal waters which have a free connection to the territorial sea, undergo net seaward...
- Saline formationsDeep and geographically extensive sedimentary rock layers saturated with waters or brines that have a high...
- Saline Intrusion Barrier WellsClass V wells that are used to inject fluids to prevent the intrusion of salt water into an aquifer. These...
- Saline WaterWater that contains significant amounts of dissolved solids. Here are our parameters for saline water: Fresh...
- Saline water bodyWater body with greater than 10,000ppm to 35,000 ppm dissolved salt.
- Salinity1. Amount of dissolved salts in a given volume of water.
- Salinity regimeWater distinguished by its salinity and tidal influence. The major salinity regimes are tidal fresh...
- Salmonella spp.1. Salmonella is a bacterium that enters the body through ingestion of contaminated food or water. Symptoms...
- SalmonellosisS. typhi and the paratyphoid bacteria are normally caused septicemic and produce typhoid or typhoid-like...
- Salmonidaetrouts and salmons
- Salt Bath DescalingRemoving surface oxides or scale from a part by immersing the part in a molten salt bath or hot salt...
- Salt Bath Descaling, OxidizingRemoval of scale from semi-finished steel products by the action of molten salt baths other than those...
- Salt Bath Descaling, ReducingRemoval of scale from semi-finished steel products by the action of molten salt baths containing sodium...
- Salt DamageThe uptake of salts by the roots of roadside trees is a common problem wherever sodium chloride, calcium...
- Salt DomeA diaper formed by the intrusion of salt into surrounding rocks.
- Salt marsh1. Wetlands that are located in salt water areas and are dominated by cordgrass, also called Spartina. Salt...
- Salt River BasinThe Salt River Basin. Arizona. Area = 13700 sq.mi.
- Salt River ProjectConstruction of electricity-generating engines owned and operated by the Salt River Project at the Tri-Cities...
- Salt Stations Pickle ProductionHandling and subsequent preserving of cucumbers and other vegetables at salting stations or tankyards, by...
- Salt WaterWater with an average tidal cycle chloride concentration of 18,700 mg/l or greater (corresponding to a...
- Salt Water Intrusion1. The invasion of fresh surface or ground water by salt water. If it comes from the ocean it may be called...
- Salt Wedge DomainPortions of estuaries that have an unimpeded connection of bottom waters to the sea develop a wedge-shaped...
- saltationSand grains colliding with other sand grains because of high velocity winds.
- Salts1. Minerals that water picks up as it passes through the air, over and under the ground, or from households...
- saltwater intrusionDisplacement of fresh or ground water by the advance of salt water due to its greater density, usually in...
- Salt-Wedge EstuaryIn this circulation type, the density-driven component dominates and two well-mixed layers are separated by a...
- Salvage1. The utilization of waste materials.
- Salvage harvestRemoval of trees that are dead, damaged, or imminently threatened with death or damage in order to use the...
- Same Location1. Same or contiguous property that is under common ownership or control, including properties that are...
- Same Producer EstablishmentWhen used with respect to two establishments, means that each such establishment is either owned by, or...
- Sample1. The water that is analyzed for the presence of USEPA-regulated drinking water contaminants. Depending on...
- Sample DepthThe distance from the water surface at which a sample was taken.
- Sample DesignThe sampling procedure used to produce any type of sample.
- Sample End DateThe date on which the final composite sample was taken. Not present for a grab sample or if the UMK is...
- Sample (Environmental)Fraction of a material tested or analyzed; a selection or collection from a larger collection.
- Sample FractionThe portion of the sample associated with results obtained from a physically-partitioned sample.
- Sample FrameRefers to the list or map that identifies every unit within the target population of interest, a physical...
- Sample IntegrityThe maintenance of the sample in the same condition as when sampled.
- Sample Media Analysis TypeThe analysis types used to describe a parameter code (e.g., filter fraction, weight basis). View the entire...
- Sample Preservation1. Techniques that stabilize parameters of interest by retarding chemical or biological changes.
- Sample Process Control, or Internal ControlFunctions like the target in its ability to be collected, concentrated and detected. A sample process...
- Sample Processing1. The processing of biologically contaminated environmental samples prior to sample analysis in order to...
- Sample Quantitation LevelQuantity of a substance that can be reasonably quantified given the limits of detection for the methods of...
- Sample Quantitation LimitThe quantity of a substance that can be reasonably quantified given the limits of detection for the methods...
- Sample Start DateThe date on which a grab sample was taken or the start date of a composite sample.
- Sample TypeThe method by which a composite of two or more samples is created. Examples of composite methods include grab...
- Sample variance (s2) and its square root standard deviation (s)The most common measures of the spread (dispersion) of a set of data. These statistics are computed using the...
- Sampled Population1. A conceptual population that is a subset of the intersection of the Target Population and the Sample...
- Sampler Operated SimultaneouslyTwo or more collocated samplers or analyzers are operated concurrently with no significant difference in the...
- Sampling1. Selection for retention of part of a body of similar records to serve as a representation of the whole...
- Sampling and Analysis Plan1. A sampling and analysis plan (SAP) documents the procedural and analytical requirements for a one-time or...
- Sampling BiasThe tendency of a sample to exclude some members of the sampling universe and over-represent others.
- Sampling Connection SystemAssembly of equipment within a process unit used during periods of representative operation to take samples...
- Sampling Distribution1. The distribution of a statistic.
- Sampling Error1. The maximum expected difference between a probability sample value and the true value.
- Sampling FrameworkSet of parameters which define the universe from which the sample will be selected.
- Sampling FrequencyThe interval between the collection of successive samples.
- Sampling Storage MediumParticulate filter, sample bag, or any other storage device used for batch sampling.
- Sampling StrataThree types of areas sampled during a survey which include the following:(1) Densely populated areas;(2)...
- Sampling strategy1. A sampling design, together with a plan of analysis and estimation. The design consists of a frame, either...
- Sampling Unit1. An entity that is subject to selection and characterization under a sampling design. A sample consists of...
- San Francisco BayThe drainage into the Pacific Ocean from the Stemple Creek Basin boundary to and including the Pescadero...
- San JoaquinThe San Joaquin River Basin. California. Area = 15600 sq.mi.
- San JuanThe San Juan River Basin. Arizona, Colorado, New Mexico, Utah. Area = 24600 sq.mi.
- Sanborn MapA Sanborn map is a record kept for insurance purposes that shows, for a specific property, the locations of...
- SanctionsActions taken by the federal government for failure to provide or implement a State Implementation Plan...
- Sand1. Soil particles between 0.05 and 2.0 mm in diameter.
- sand barrensAreas of deep sands with scattered, sometimes scrubby, oak and pine trees and a ground layer of sedges and...
- sand beachAn area at the water's edge where sand is deposited by waves and wind action.
- Sand ChannelThese are narrow passages between, and in association with, pavement formations commonly oriented...
- Sand FilterA packed-bed filter of sand or other granular materials used to provide advanced secondary treatment of...
- Sand FiltersDevices that remove some suspended solids from sewage. Air and bacteria decompose additional wastes filtering...
- Sand Flat HabitatIntertidal sandflats or sandy subtidal areas; composed of loose, unconsolidated substrate characterized by...
- Sand SeparatorA mechanical device or series of course ways used to settle sand from sand-laden manure.
- sandbarsOffshore shoals built up by wave, current, or wind action.
- Sanding SealerClear wood coating formulated and recommended for application to bare wood to seal the wood and to provide a...
- SandstoneSedimentary rock made mostly of sand-sized grains.
- SandstormParticles of sand carried aloft by strong wind. The sand particles are mostly confined to the lowest ten...
- Sanitary DefectDefect that could provide a pathway of entry for microbial contamination into the distribution system or that...
- Sanitary Landfill1. Land disposal site employing an engineered method of disposing of solid wastes on land in a manner that...
- Sanitary Sewer1. A pipe or conduit (sewer) intended to carry wastewater or water-borne wastes from homes, businesses, and...
- Sanitary Sewer Overflow1. Untreated or partially treated sewage overflow from a sanitary sewer collection system.
- Sanitary Sewer OverflowsUntreated or partially treated sewage overflows from a sanitary sewer collection system.
- Sanitary SewersUnderground pipes that carry off only domestic or industrial waste, not storm water.
- Sanitary Survey1. An onsite review of the water source, facilities, equipment, operation and maintenance of a public water...
- Sanitary Waste1. Liquid or solid wastes originating solely from humans and human activities, such as wastes collected from...
- Sanitary WastewaterWastewater from toilets, dishwashers, and sinks where food is processed.
- sanitary water1. Water discharged from restrooms, showers, food preparation facilities, or other nonindustrial operations...
- Sanitary Water UseDomestic water uses, such as faucets, toilets, and showers.
- Sanitation1. Control of physical factors in the human environment that could harm development, health, or survival.
- Sanitation harvestRemoval of trees that are under attack by or highly susceptible to insect and disease agents in order to...
- Sanitized DocumentA version of a document from which information claimed as trade secret or confidential has been omitted or...
- Sanitizer1. One of three groups of antimicrobials registered by EPA for public health uses. EPA considers an...
- Sanitizer ProductPesticide products that are intended to disinfect or sanitize, reducing or mitigating growth or development...
- Sans serifa typeface that has no serifs (small strokes at the end of main stroke of the character). Helvetica and Arial...
- SapA fluid that circulates in vessel elements (xylem) or sieve tube elements (phloem) of a plant. It is often...
- Sap FlowMovement of sap through the plant tissues.
- SaplingA loose term for a young tree more than a few feet tall and an inch or so in diameter that is typically...
- Saponins, Quillaja saponariaA new active ingredient that is extracted from the wood and bark of the soapbark tree also known as Quillaja...
- SaprolegniosisCaused by several kinds of fungi or “water molds” that infect the gills and/or skin of aquatic and immature...
- saprolite1. A soft, earthy, clay-rich, thoroughly decomposed rock formed in place by chemical weathering of igneous or...
- SaprophyteAny plant that lives and feeds on dead organic matter.
- Saprophytes1. (SAP-row-FIGHTS) Organisms living on dead or decaying organic matter. They help natural decomposition of...
- Saprophytic Fungus1. Fungi living on dead or decaying organic matter.
- Sapstain FungusSap stain fungi infect the sapwood of trees and cause a discoloration of the lumber products, but do not...
- SapwoodOuter region of xylem of tree trunks, containing some living cells and functioning in water conduction, food...
- SarcoidAn inflammatory disease marked by the formation of granulomas (small nodules of immune cells) in the lungs...
- Sarcoidosis1. An idiopathic inflammatory disorder characterized by the formation of non-necrotizing epithelioid...
- Sarcoplasmic ReticulumThe endoplasmic reticulum of striated muscle, specialised for the sequestration of calcium ions that are...
- SARS-CoV-2Species of BETACORONAVIRUS causing atypical respiratory disease (COVID-19) in humans. The organism was first...
- SARS-CoV-2 DisinfectantEPA has published List N: Disinfectants for Coronavirus (COVID-19). These products are expected to o kill the...
- SASComputer software for performing statistical analyses.
- SaskatchewanThe Saskatchewan River Basin within the United States. Montana. Area = 697 sq.mi.
- SatelliteA radio relay station that orbits the earth. A complete satellite communications system also includes earth...
- Satellite CommunicationA telecommunications service provided via one or more satellite relays and their associated uplinks and...
- Satellite FacilitiesCSO storage/treatment facilities at remote locations upstream of the dry-weather flow sewage treatment plant...
- Satellite Master Antenna TelevisionA satellite dish system used to deliver signals to multiple dwelling units (e.g., apartment buildings and...
- Satellite VehicleSmall collection vehicle that transfers its load into a larger vehicle operating in conjunction with it.
- Saturated ChlorofluorocarbonsfFuorinated GHGs that contain only chlorine, fluorine, and carbon and that contain only single bonds.
- Saturated MaterialFor purposes of this subpart, mineral material with sufficient surface moisture such that particulate matter...
- Saturated Zone1. The zone in which all the voids in the rock or soil are filled with water at a pressure that is greater...
- Saturation1. The ratio of the volume of a single fluid in the pores to pore volume expressed as a percentage or a...
- Saturator1. (SAT-you-RAY-tore) A device which produces a fluoride solution for the fluoridation process. The device is...
- Sauerkraut Production1. Draining and subsequent filling and canning of fermented cabbage and juice.
- Sausage and Luncheon Meat ProcessorOperation which cuts fresh meats, grinds, mixes, seasons, smokes or otherwise produces finished products such...
- savannah or savannaA community of grasses and other herbaceous plants with less than 50 percent tree cover.
- Savannah River SiteDepartment of Energy's nuclear waste management and related national defense operations at its Savannah River...
- Savings WithdrawalA fixed amount of money removed from the savings account of the utility to help pay for capital improvement...
- SawingCutting a workpiece with a band, blade, or circular disc having teeth.
- SawmillBuilding where timber is sawed into boards.
- SC03 CycleTest cycle, described in §86.160-00 and listed in appendix I, paragraph (h), of this part, which is designed...
- SC03 Driving ScheduleTest procedure specified in 40 CFR 1066.801(c)(2).
- ScaleAn aggregate measure that assigns a value to a case based on a pattern obtained from a group of related...
- Scale Inhibitor1. In hydraulic fracturing, ethylene glycol is used to inhibit the precipitation of sulfate and carbonate...
- Scale TypeYou can switch between linear and log scale to visualize data on the Monitoring Report page. What is a linear...
- ScalpThe skin which covers the top of the head and which is usually covered by hair.
- ScannerA radio receiver that moves across a wide range of radio frequencies and allows audiences to listen to any of...
- SCANNINGIn electronic records, the process of converting alphanumeric or graphic information on paper or microforms...
- Scanning Electron MicroscopyTechnique of electron microscopy in which the specimen is coated with heavy metal and then scanned by an...
- Scanning Tunneling MicroscopyAn imaging technique that produces a view of the surface of a sample at the atomic level by detecting...
- ScapulaAlso called the shoulder blade, it is a flat triangular bone, a pair of which form the back part of the...
- ScarfingSteel surface conditioning operations in which flames generated by the combustion of oxygen and fuel are used...
- ScarificationThe process of removing the forest floor or mixing it with the mineral soil by mechanical action preparatory...
- ScarpA relatively straight, cliff-like face or slope of considerable linear extent, which breaks up the general...
- Scarp/WallA relatively straight, cliff-like face or slope of considerable linear extent, which breaks up the general...
- ScatteringThe process by which electromagnetic radiation interacts with and is redirected by the molecules of the...
- Scavenger1. An opportunistic animal that feeds on decaying plants and animals or scraps of food abandoned by other...
- ScavengingUncontrolled and unauthorized removal of materials at any point in the solid waste management system.
- Scavenging BehaviorSearching for and feeding on dead carcasses or decaying organic matter.
- scenario1. As used in the ESRP, a set of driving conditions that will cause ecological and potentially human...
- Scenario evaluation1. Exploration of realistic, hypothetical scenarios related to hydraulic fracturing activities using computer...
- Scenario TimeframeThe time period (current and/or future) being considered for the exposure pathway.
- Scenario uncertainty1. Uncertainty regarding missing or incomplete information needed to fully define exposure and dose.
- ScenariosA plausible and often simplified description of how the future may develop based on a coherent and internally...
- SCFMCubic Feet of air per Minute at Standard conditions of temperature, pressure and humidity (O degrees C /14.7...
- Schedule, PipeA sizing system of arbitrary numbers that specifies the ID (inside diameter) and OD (outside diameter) for...
- Scheduled Maintenance1. Adjusting, repairing, removing, disassembling, cleaning, or replacing components or systems periodically...
- SCHEDULED RECORDSRecords whose final disposition has been approved by NARA. See also DISPOSITION (1).
- SCHEDULED TRANSFERThe act or process of moving permanent records to the National Archives for preservation, as authorized by a...
- SCHEDULINGThe process of developing a document that provides mandatory instructions for what to do with records (and...
- Schema1. Definition of the structure and, sometimes, contents of a document or database.
- SchistosomaA genus of trematode flukes belonging to the family Schistosomatidae. There are over a dozen species. These...
- SchistosomiasisInfection with flukes (trematodes) of the genus Schistosoma. Three species produce the most frequent clinical...
- School1. Any elementary or secondary school as defined in section 198 of the Elementary and Secondary Education Act...
- School Building1. Structures build for the purpose of housing students, teachers, and their needed materials.
- School Building Surfacing MaterialMaterial in a school building that is sprayed-on, troweled-on, or otherwise applied to surfaces, such as...
- School Bus Idling EmissionDiesel exhaust from idling school buses can accumulate on and around the bus and pose a health risk...
- School EnrollmentEnrollment in regular school, either public or private, which includes nursery school, kindergarten...
- School Siting CommitteeCommittee established to make recommendations to the LEA's governing body on sites for building new schools...
- School-Age ChildChild in the 6 to 11 year age range.
- SchoolsThe National Center for Education Statistics’ (NCES) Education Demographic and Geographic Estimate (EDGE)...
- SchreckreaktionAn alarm response in some fishes as a result of an alarm substance (schreckstoff), or alarm pheromone being...
- ScienceThe careful study of the structure and behavior of the physical world, especially by watching, doing...
- Science Advisory Board1. A group established by Congress to provide independent scientific and engineering advice to the EPA...
- Science Advisory PanelThe FIFRA SAP, authorized under FIFRA, is an independent review panel. Its charge is to comment on actions...
- Science and PolicyScientific research, both problem driven and core research, informing and supporting policy and regulatory...
- Science and TechnologyMaterials, tools and content and related to the scientific, technical and research activities of the agency...
- Science QuestionScientific or technical question that identifies the critical research needed within each of the Research...
- Science ReviewsOPP reviews various pesticide studies, such as toxicology, environmental fate and groundwater, ecological...
- Science StakeholderPrimarily concerned with the organization and application of science-based knowledge in the form of data...
- Science-Based Decision MakingBased on a careful and complete review and critical evaluation of available scientific evidence, an analysis...
- ScienceHubScienceHub enables the upload and public release of datasets associated with published intramural...
- Scientific & Technological Research & InnovationScientific and Technological Research and Innovation includes all federal activities whose goal is the...
- Scientific ActivitiesActivities that involve the development and application of scientific methods and theories in a systematic...
- Scientific CommitteeGroup of qualified scientists designated by the National Academy of Sciences according to agreement under the...
- Scientific DataRecorded information used to test scientific hypotheses or theories. Data may include laboratory notebooks...
- Scientific Data Management PlanSDMPs describe all collected or created research data and metadata, as well as plans for providing long-term...
- Scientific Feature TestingValidating the model output with the mathematical formulas and distributions specified for each disease
- Scientific InformationIncluding but not limited to inputs, data (including knowledge acquired via lived experience), models...
- Scientific Integrity1. Firm adherence to intellectual honesty and the responsible conduct of research. [Anastas 2010]
- Scientific Management Decision PointA point during the Ecological Risk Assessment (ERA) process when the risk assessor communicates results of...
- Scientific MethodThe principles and processes regarded as necessary for scientific investigation, including rules for concept...
- Scientific ProductsWork products that contain scientific information. These include, but are not limited to, journal...
- Scientific ResearchThe systematic inquiry directed toward fuller scientific knowledge or understanding of the subject studied...
- Scientific Research DataThe digital recorded factual material commonly accepted in the scientific community as necessary to validate...
- Scientific Research Data (Research Data)The digital recorded factual material commonly accepted in the scientific community as necessary to validate...
- Scientific SampleA group of cases selected from a population by a random process. Every member of the population has a known...
- Scientific Support CoordinatorAs the principal advisors for scientific issues, communication with the scientific community, and...
- Scientific Support CoordinatorsScientific and technical advisors in coastal and marine areas from the National Oceanic and Atmospheric...
- Scientist1. A person who has studied science, especially one who is active in a particular field of investigation.
- SCI-GROWTier I Ground Water Computer Model
- Scintillation detectorAn efficient detector used in nuclear-logging equipment; radiation causes flashes of light that are amplified...
- SciotoThe Scioto River Basin. Ohio. Area = 6440 sq.mi.
- SclereidA type of sclerenchyma cell which is various in shape (e.g., isodiametric, branched, star-shaped, etc.) and...
- Sclerotia1. The hardened, resting mass of fungal hyphae.
- ScopeRange and breadth of actions, alternatives, and effects to be considered in an environmental impact statement...
- Scope 1 EmissionsEmissions from operations that are owned or controlled by the reporting company.
- Scope 1 GHG EmissionsDirect GHG emissions from sources that are owned or controlled by the reporting entity. This can include...
- Scope 2 EmissionsIndirect emissions from the generation of purchased or acquired electricity, steam, heat or cooling consumed...
- Scope 2 GHG EmissionsIndirect GHG emissions resulting from the generation of electricity, heat, or steam generated off site but...
- Scope 3 Emissions1. All indirect emissions (excluding Scope 2 emissions) that occur in the value chain of the reporting...
- Scope 3 GHG EmissionsIndirect GHG emissions from sources not owned or directly controlled by the reporting agency but related to...
- ScopingAnalyzing alternative ways for conducting an evaluation. It is clarifying the validity of issues, the...
- Scoping ModelingA method of approximation that involves simple, steady-state analytical solutions for a rough analysis of a...
- ScoreA score is the numerical value in RSEI's risk-related results, combining surrogate dose, toxicity, and...
- ScoringCategorization of the results of analyses based on types of evidence for a particular candidate cause, based...
- ScorpionesScorpions which are predatory arachnids
- ScotomaAn area of depressed vision within the visual field, surrounded by an area of less depressed or normal vision
- Scour1. To abrade and wear away. Used to describe the weathering away of a terrace or diversion channel or...
- Scour Depression1. Depression formed by the abrasive action of sand or sediment driven by the movement of water or ice.
- scour poolRemoval of underwater material by waves and currents, especially at the base or toe of a shore structure.
- ScouringA process that occurs when fast-moving water disrupts the arrangement of sediment in a river or stream...
- Scrap1. Materials discarded from manufacturing operations that may be suitable for reprocessing.
- Scrap Dryer/Delacquering Kiln/Decoating Kiln1. Unit used primarily to remove various organic contaminants such as oil, paint, lacquer, ink, plastic...
- Scrap Metal1. Worn or extra bits and pieces of metal parts, such as scrap piping and wire, or worn metal items, such as...
- Scrap Metal or Junk PileA pile consisting primarily of scrap metal or discarded durable goods such as appliances, automobiles, auto...
- Scrap Metal Processor1. Refers to an intermediate operating facility where recovered metal is sorted, cleaned of contaminants, and...
- Scrap PreheaterVessel or other piece of equipment in which metal scrap that is to be used as melting furnace feed is heated...
- Scrap Provider1. Person (including a broker) who contracts directly with a steel mill to provide scrap that contains motor...
- Scrape SystemCollection method that uses a mechanical or other device to regularly remove manure from barns, confine...
- Scrape-and-HaulManure handling system in which manure is scrape manually or with a skidloader, placed in a solid manure...
- Scrapie1. A fatal disease of the nervous system in sheep and goats, characterized by pruritus, debility, and...
- ScreenDevice for separating material according to size by passing undersize material through one or more mesh...
- Screen Print InkInks used in screen printing processes during fabrication of decorative laminates and decals.
- Screen Printing PressPrinting press in which a polyester mesh transfers ink onto the substrate.
- Screen SystemEquipment in which oversized particles are removed from the pulp slurry prior to the bleaching or papermaking...
- Screening1. An activity using less expensive tests typically of shorter duration to provide preliminary information...
- Screening and TestingScreening is a survey over a large population to detect the presence of a diseased organism, toxic substance...
- Screening ModelA type of model designed to provide a "conservative" or risk-averse answer. Screening models can be used with...
- Screening NumbersLevels of contaminants in particular substances (soil, sediment, water) that are known to cause harmful...
- Screening OperationDevice for separating material according to size by passing undersize material through one or more mesh...
- Screening PerimeterScreening distances intended to identify potential land uses near candidate school locations that warrant...
- Screening ProtocolThe plan and procedures which are to be followed in conducting a screening test.
- Screening Risk AssessmentA risk assessment performed with few data and many assumptions to identify exposures that should be evaluated...
- Screening SIUse of the SI process to narrow the range of candidate causes and to guide future data collection, rather...
- Screening-level assessmentAn exposure assessment that examines exposures that would fall on or beyond the high end of the expected...
- screening-level risk assessmentA risk assessment performed with few data and many conservative assumptions to identify exposures that should...
- ScreenoutAttempt to clear proppant from the wellbore to dislodge the proppant out of the well.
- Screwed ConnectorThreaded pipe fitting where the threads are cut on the pipe wall and the fitting requires only two pieces to...
- ScriptIn audiovisual media a text that contains all spoken language plus written description scene-by-scene in...
- Scroll CaseSpiral-shaped steel intake guiding the flow into the wicket gates located just prior to the turbine.
- Scrotum1. The external pouch that in most mammals contains the testes.
- Scrubber1. A device that removes air pollution, mainly sulfur dioxide, from smokestacks.
- Scrubber BlowdownLiquor or slurry discharged from a wet scrubber that is either removed as a waste stream or processed to...
- scrubbing1. A common method of reducing stack air emissions; removal of impurities by spraying a liquid that...
- SCS curve numberNumber used to determine runoff, as a result of rainfall, for a specific land area based on the area's...
- ScuteLarge, bony plates covering animals such as sturgeon, turtles and sticklebacks.
- ScutesLarge, bony plates covering animals such as sturgeon, turtles and sticklebacks.
- SeaA large body of salt water, second in rank to an ocean, more or less landlocked and generally part of, or...
- Sea BreezeA thermally produced wind blowing during the day from a cool ocean surface onto the adjoining warm land...
- Sea ChestUnderwater compartment or cavity within the facility or vessel hull or pontoon through which sea water is...
- Sea FoamSea foam is produced by turbulent mixing and agitation of surface waters, enhanced by high concentrations of...
- Sea Level Rise1. The increase in ocean water levels at a specific location, taking into account both global sea level rise...
- Sea Level Rise (NOAA)1. This dataset depicts land at risk of permanent flooding when sea level rises. There are six map layers...
- Sea SaltSodium chloride in ocean water which also includes a number of trace elements
- Sea Surface TemperatureThe temperature in the top several feet of the ocean, measured by ships, buoys and drifters.
- Sea TankerSelf or non-self-propelled vessel constructed or adapted to transport liquid, solid or gaseous commodities or...
- Sea-Floor SpreadingSea-floor spreading is what happens at the mid-oceanic ridge where a divergent boundary is causing two plates...
- Seafood Processing VesselAny offshore or nearshore, floating, mobile, facility engaged in the processing of fresh, frozen, canned...
- SealAn impermeable rock overlying an oil or gas reservoir that tends to prevent migration of fluids from the...
- Seal Coat MaskantOvercoat applied over a maskant to improve abrasion and chemical resistance during production operations.
- Sealant1. Substance applied to a surface used prevent fluids from permeating that surface.
- Sealant ApplicatorEquipment that uses open pan-type application (e.g., a roller partially submerged in an open pan of sealant)...
- Sealed BatteryA battery with a captive electrolyte and a resealing vent cap, also called a valve-regulated battery...
- sealed DP toolsSoil, groundwater, and soil-gas sampling tools that are sealed while they are pushed to the target depth.
- Sealed Electric Arc FurnaceFurnace equipped with the cover with seals around the electrodes and outer edges of the cover to eliminate...
- Sealed SourceRadioactive material that is either permanently sealed in a capsule or closely bonded and in a solid form...
- Sealed Submerged Arc FurnaceElectric submerged arc furnace equipped with a total enclosure or cover from which primary emissions are...
- Sealed System1. Lacking openings to the atmosphere that would allow a measurable amount of liquid or vapor to leak out...
- Sealer1. Coating formulated and recommended for application to a substrate for one or more of the following...
- Sealless PumpCanned-motor pump, diaphragm pump, or magnetic drive pump, as defined in this section.
- SeamountAn elevation of the seafloor, which is 1,000 meters or higher. Seamounts may be discrete, arranged in a...
- Search EngineOn the Internet, a search engine has three parts: A spider (also called a "crawler" or a "bot") that goes to...
- Search Text / KeywordEnter your document text search terms. Use quotes for exact phrases (e.g., "Fish Tissue"), OR to combine...
- Season End DateThe End Date for the Season that applies to a Waste Load Allocation.
- Season Start DateThe Start Date for the Season that applies to a Waste Load Allocation.
- Seasonal Allergic RhinitisAllergic rhinitis caused by outdoor allergens.
- Seasonal BoilerBoiler that undergoes a shutdown for a period of at least 7 consecutive months (or 210 consecutive days) each...
- Seasonal energy efficiency ratioA measure of seasonal or annual efficiency of a central air conditioner or air conditioning heat pump. It...
- Seasonal RateA pricing structure for which the dollar amount charged per unit of water (such as dollars per gallon) varies...
- Seasonal ShiftIncludes changes in the timing of natural events, such as flower blooms and animal migration, which is...
- Seasonal Shut DownShut down of an affected facility for a period of at least 45 consecutive days due to weather or seasonal...
- Seasonal ShutdownShut down of an affected facility for a period of at least 45 consecutive days due to weather or seasonal...
- Seasonal SystemNon-community water system that is not operated as a public water system on a year-round basis and starts up...
- Seasonal Water RatePricing structure for which the dollar amount charged per unit of water (such as dollars per gallon) varies...
- seasonalityChange in physiological status or in disease occurrence that conforms to a regular seasonal pattern.
- seawall1. A structure, often concrete or stone, built along a portion of a coast to prevent erosion and other damage...
- seawallsA structure separating land and water areas, primarily designed to prevent erosion and other damage due to...
- SeawaterWater that comes from the ocean and is very salty.
- Seawater Cooling Overboard Discharge1. The discharge of seawater from a dedicated system that provides noncontact cooling water for other vessel...
- Seawater Piping Biofouling PreventionThe discharge of seawater containing additives used to prevent the growth and attachment of biofouling...
- SeaweedMulticellular marine macroalgae including some members of red (Rhodophyta), green (Chlorophyta), and brown...
- Sebaceous GlandSmall, sacculated organs found within the dermis. Each gland has a single duct that emerges from a cluster of...
- Secchi depthA measurement of the transparency of surface water. The depth at which a Secchi Disk can no longer be seen.
- Secchi Disc(SECK-key) A flat, white disc lowered into the water by a rope until it is just barely visible. At this...
- secchi diskA black and white patterned disk used to measure the clarity of water in visibility distance.
- Second DegreeA mathematical function that contains a quadratic term.
- Second GrowthTimber that has grown after the removal, whether by cutting, fire, wind, or other agency, of all or a large...
- Second Hand Smoke EliminationPhysical separation of any person or protection of the environment from smoke from burning tobacco products...
- Second Messenger1. A diverse family of low molecular weight compounds such as cyclic AMP and calcium ions, which transmit the...
- Second Messenger Mediated SignalingAny intracellular signal transduction in which the signal is passed on within the cell via a second...
- Second Party Certified or Verified1. When an entity is assessed against a standard by an organization that has an interest in the entity but is...
- Second Source Calibration StandardA standard obtained or prepared from a source independent of the source of standards for the initial...
- Second Source Calibration Verification StandardHumidified calibration standard prepared from a calibration stock gas procured from a separate supplier. An...
- Secondary Activity CategoryThe codes used to define a sample type that is based on the media code found in the legacy STORET system.
- Secondary Air InjectionSystem whereby air (not ingested by the engine) is introduced into the exhaust system in front of a catalyst.
- Secondary Aluminum Processing Unit1. Existing SAPU means all existing group 1 furnaces and all existing in-line fluxers within a secondary...
- Secondary Aluminum Production1. Scrap is melted in oil or gas-fired reverberatory furnace. Removes magnesium by treatment in a molten bath...
- Secondary Aluminum Production FacilityAny establishment using clean charge, aluminum scrap, or dross from aluminum production, as the raw material...
- secondary attack rateA measure of the frequency of new cases of a disease among the contacts of known cases.
- Secondary BatteryA battery that can be recharged.
- Secondary Calibration Standard (turbidity)Commercially prepared, stabilized sealed liquid or gel turbidity standards calibrated against properly...
- Secondary Calibration Turbidity StandardCommercially prepared, stabilized sealed liquid or gel turbidity standards calibrated against properly...
- Secondary ChamberComponent of the HMIWI that receives combustion gases from the primary chamber and in which the combustion...
- Secondary ContainmentAs used in HRS Table 3-2, secondary containment is applicable to the evaluation of the containment factor for...
- Secondary Containment UnitAny structure, including rigid diking, that is designed and constructed to intercept and contain pesticide...
- Secondary Copper SmelterFacility that processes copper scrap in a blast furnace and converter or that uses another pyrometallurgical...
- Secondary Data1. Data that has been collected for another purpose, but may be reanalyzed in a subsequent study.
- Secondary data/analysisThe reanalysis of data collected by other individuals or group; an analysis of data for purposes other than...
- Secondary DisinfectionLonger lasting water treatment as the water moves through pipes to consumers. Water quality is maintained by...
- Secondary Drinking Water RegulationsNon-enforceable regulations applying to public water systems and specifying the maximum contamination levels...
- secondary drinking water standardsNon-enforceable federal guidelines regarding cosmetic effects (such as tooth or skin discoloration) or...
- Secondary Effect1. An effect where the stressor acts on supporting components of the ecosystem, which in turn have an effect...
- Secondary Emission1. Emissions which occur as a result of the construction or operation of an existing stationary facility but...
- Secondary Emission Control SystemCombination of equipment used for the capture and collection of secondary emissions (e.g.,(1) An open hood...
- Secondary Engine ManufacturerAnyone who produces a new engine by modifying a complete or partially complete engine that was made by a...
- Secondary Fiber PulpingPulping process that converts a fibrous material, that has previously undergone a manufacturing process, into...
- Secondary fine particlesFine particles that form in complicated reactions in the atmosphere of chemicals, such as sulfur dioxides and...
- Secondary Fine Particulate MatterFine particles that form in complicated reactions in the atmosphere of chemicals, such as sulfur dioxides and...
- Secondary FlareFlare in a cascaded flare system that provides additional flare capacity and pressure relief to a flare gas...
- Secondary flow contextInformation that provides additional context to the flowable [Original source...
- Secondary Formation1. The process by which chemicals are transformed in the air into other chemicals. When a chemical is...
- Secondary Fuel1. Fuel fired through a burner other than a primary fuel burner. The secondary fuel may provide supplementary...
- Secondary Gas SystemA capture system that collects the gases and fumes released when removing and transferring molten materials...
- Secondary Hospital/Medical/Infectious Waste Incinerator ChamberComponent of the HMIWI that receives combustion gases from the primary chamber and in which the combustion...
- Secondary Industry CategoryAny industry category which is not a primary industry category.
- secondary infectionAn infection, usually septic, occurring in a person or animal already suffering from an infection of another...
- Secondary Lead ProductionProduction from lead scrap such as batteries
- Secondary Lead Smelter1. Any facility producing lead from a leadbearing scrap material by smelting to the metallic form. [40 CFR...
- Secondary (magnetic field)The magnetic field that is generated by currents that are induced to flow in the ground by time variations in...
- Secondary Material1. The five categories of solid wastes regulated under Subtitle C, which include: spent materials...
- Secondary Materials1. Materials that have been manufactured and used at least once and are to be used again.
- Secondary Maximum Contaminant LevelSMCLs which apply to public water systems and which, in the judgement of the Administrator, are requisite to...
- Secondary Maximum Contaminant Level (regulatory)These apply to public water systems and which, in the judgement of the Administrator, are requisite to...
- Secondary Maximum Contaminant LevelsSecondary MCLs for various water quality indicators are established to protect public welfare.
- Secondary Nonferrous Metals Processing FacilityBrass and bronze ingot making, secondary magnesium processing, or secondary zinc processing plant that uses...
- Secondary oil recoveryInjection of water into an oil well after primary oil recovery to force out some of the remaining thicker...
- Secondary Organic AerosolCarbon-containing air pollutants formed from gas-to-particle conversion of trace amounts of oxidized...
- Secondary Organic Aerosol FormationGas to particle conversion of organic gases to form atmospheric aerosols
- Secondary PhloemPhloem formed during the secondary growth of dicots
- Secondary Pollutant1. Pollutants generated by chemical reactions occurring within the atmosphere.
- Secondary Pollutant Removal EquivalencyThe amount of a toxic pollutant removed by the combination of the applicant's own treatment of its influent...
- Secondary porosityPorosity developed in a rock after its deposition as a result of fracturing or solution; usually not...
- Secondary Radon Measurement ServiceRadon measurement services that do not include the reading or the ability to analyze the results of the...
- Secondary RecoveryEnhanced oil recovery.
- Secondary Removal EquivalencyThe amount of a toxic pollutant removed by the combination of the applicant's own treatment of its influent...
- Secondary SchoolSchool comprising any span of grades beginning with the next grade following an elementary or middle school...
- secondary spread/secondary attack rate/secondary transmissionDefinitions for these analogous terms were not found in most of the sources consulted. In individual studies...
- Secondary StandardA national secondary ambient air quality standard promulgated pursuant to section 109 of the Act.
- Secondary Standards1. National ambient air quality standards designed to protect welfare, including effects on soils, water...
- Secondary SuccessionProgression of communities in habitats where the climax community has been disturbed or removed entirely...
- Secondary TillageThe mechanical manipulation of soil that follows primary tillage. Performed at shallower depths than primary...
- Secondary Treatment1. The second step taken by a Publicly Owned Treatment Works in which bacteria consume the organic parts of...
- Secondary Treatment EligibilityTreatment works shall be eligible for consideration for effluent limitations described for treatment...
- Secondary Tube DryerSecond stage and subsequent stages following the primary stage of a multi-stage tube dryer. Secondary tube...
- Secondary Wastewater ReuseProcess to reuse sewage wastewater where it can be safely beneficial, such as crop irrigation.
- Secondary Wastewater Treatment1. Treatment (following primary wastewater treatment) involving the biological process of reducing suspended...
- Secondary XylemOnly in woody trees and shrubs. Xylem created by the secondary growth of the plant's vascular cambium.
- Secondary Zinc ProcessingSecondary zinc production uses process scrap from zinc slabs, zinc oxides and zinc dust. Selective melting...
- Secondhand Tobacco SmokeChildren have no control over their indoor environment, including where and when adults smoke. Secondhand...
- Second-Order ReactionReaction in which the rate of dis- appearance of a test substance is directly proportional to the product of...
- Secret ClassificationNational security information or material which requires a substantial degree of protection. The test for...
- Secretary of EnergySecretary of Energy.[40 CFR 194.2 (CFR 2018)]
- Secretion1. The process of segregating, elaborating, and releasing some material either functionally specialized (as...
- Secretory PathwayA series of sequential intracellular steps involved in the transport of proteins (such as hormones and...
- Secretory VesiclesVesicles derived from the GOLGI APPARATUS containing material to be released at the cell surface.
- Section 104(E) Ref LitigationReferred to the Department of Justice/Office of Enforcement and Compliance Monitoring for information from a...
- Section 106 107 LitigationReferral to the Office of Enforcement and Compliance Monitoring or the Department of Justice, of a civil...
- Section 106 LitigationJudicial referral without settlement to compel potentially responsible parties (PRPs) to do response work...
- Section 107 LitigationCost recovery discussions with a potentially responsible party have been referred to the court.
- Section 112(d) StandardAn emission standard issued by the Administrator under section 112(d) of the Clean Air Act, as amended.
- Section 303(d)A section of the Clean Water Act that requires periodic identification of waters that do not or are not...
- Section 303(d) CWASection of the Clean Water Act that requires states periodically to identify waters that do not or are not...
- Section 304(a) CriteriaDeveloped by EPA under authority of CWA section 304(a) based on the latest scientific information on the...
- Section 305(b) CWASection of the Clean Water Act that requires states to submit a biennial report in even-numbered years to the...
- Section 319Section of the Clean Water Act under which EPA has developed guidelines to help states, territories, and...
- Section 404 ExemptionIn general, Section 404 of the Clean Water Act requires permits for the discharge of dredged or fill material...
- Section 5 NoticeAny PMN, consolidated PMN, intermediate PMN, significant new use notice, exemption notice, exemption...
- Section 502(b)(10) ChangeChanges that contravene an express permit term. Such changes do not include changes that would violate...
- Section 6002 of the Resource Conservation and Recovery Act (RCRA)Section 6002 of the Resource Conservation and Recovery Act (RCRA) of 1976, as amended, directs EPA to...
- Section MillSteel hot forming operations that produce a variety of finished and semi-finished steel products other than...
- Section Seven Tracking SystemSection Seven Tracking System (SSTS) is one of the major systems that supports the Pesticide Program at EPA...
- SectorDivision, most commonly used to denote type of energy consumer (e.g., residential) or according to the...
- Sector Policies and Programs DivisionSector Policies and Programs Division (of EPA's Office of Air, OAQPS, located in RTP, NC). Develops emission...
- Secure Maximum Contaminant LevelMaximum permissible level of a contaminant in water delivered to the free flowing outlet of the ultimate...
- Secure Sockets LayerSSL (Secure Sockets Layer) is a program layer created by Netscape for managing the security of message...
- Secured LoanDirect loan or other debt obligation issued by an obligor and funded by the Administrator in connection with...
- Security Classification CategorySpecific degree of classification (Top Secret, Secret or Confidential) assigned to classified information to...
- Security Infrastructure Operations & MaintenanceActivities to ensure the continued operations and maintenance of security systems and procedures that are...
- Security ManagementSecurity Management involves the physical protection of an organization's personnel, assets and facilities...
- Security PlanningActivities to create and maintain the Agency's plan to ensure the physical protection of the Agency's...
- SedgesPlants of the family Cyperacae that resemble grasses, but have solid stems.
- Sediment1. Topsoil, sand, and minerals washed from the land into water, usually after rain or snow melt. Sediments...
- Sediment AccumulationNatural collection of sediment in a location
- sediment basinBarriers, often employed in conjunction with excavated pools, constructed across a drainage way or off-stream...
- Sediment BudgetAn accounting of the sources, transport, and deposition of sediment in a watershed over time.
- Sediment CappingUsed for remediating contaminated sediments. The cap or cover is placed over the deposit of contaminated...
- Sediment DeliveryContribution of transported sediment to a particular location or part of a landscape.
- Sediment DepositionThe process of flowing water redepositing transported material such as sediment particles.
- Sediment diagenesisDiagenesis refers to the sum of all the processes that bring about changes (e.g., composition and texture) in...
- Sediment Fence1. Temporary sediment control device used on construction sites to protect water quality in nearby surface...
- Sediment Oxygen Demand1. The solids discharged to a receiving water are partly organics, and upon settling to the bottom, they...
- Sediment ProductionDelivery of colluvium or bedrock from hillslope to stream channel. The production rate is evaluated as the...
- Sediment SheetA thin, widespread, sedimentary deposit, formed by a transgressive sea advancing for a considerable distance...
- sediment supplyThe abundance or lack of sediment in a coastal system that is available to contribute to the maintenance or...
- Sediment ToxicityApplied to BAT effluent limitations and NSPS for drilling fluids and drill cuttings refers to EPA Method...
- Sediment TransportThe main agencies by which sedimentary materials are moved are: gravity (gravity transport); running water...
- sediment transport capacity and competenceThe ability or efficiency of a stream system to move sediment.
- sediment trapA structure or vegetative barrier designed to collect soil material transported in runoff and also to reduce...
- Sediment Yield1. The amount of sediment passing a particular point in a watershed per unit of time.
- sedimentaryA rock composed of sediments, or ores formed during a process of sedimentation.
- Sedimentary BasinA sedimentary basin refers to any geological feature exhibiting subsidence and consequent infilling by...
- Sedimentary Diagenesis1. All chemical, physical, and biological modifications undergone by a sediment after its initial deposition.
- Sedimentary Rock1. A rock that is the result of consolidation of sediments.
- Sedimentary Rock Forming ProcessNatural processes through which sedimentary rocks are made.
- Sedimentation1. Process of deposition of waterborne or windborne sediment or other material; also refers to the infilling...
- Sedimentation PondReservoir for the confinement and retention of silt, gravel, rock, or other debris from a sediment-producing...
- Sedimentation TankWastewater tank in which floating wastes are skimmed off and settled solids are removed for disposal.
- Sedimentation TanksWastewater tanks in which floating wastes are skimmed off and settled solids are removed for disposal.
- Sedimentation TechnologyA water treatment process in which solid particles settle out of the water being treated in a large clarifier...
- sediment(s)Solid materials or fragments that originate from the break up of rock and are transported by air, water or...
- Sediments1. Soil, sand, and minerals washed from land into water, usually after rain. They pile up in reservoirs...
- SedumSedum is a plant genus containing several species suited for use in green roof construction. Sedum species...
- SeedThe encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high...
- Seed bedThe soil prepared by natural or artificial means to promote the germination of seeds and the growth of...
- Seed ConeFemale reproductive structure in conifers comprised of scale-like leaves and containing ovules.
- Seed DevelopmentThe natural development of seed in a fruiting plant.
- Seed DispersalThe various physical methods which include wind, insects, animals, tension, and water, by which a plant...
- Seed Dormancy1. The state of failure to complete the process of germination of an intact viable seed, due to intrinsic...
- Seed Filling PeriodSeed development from pollination to maturity.
- Seed GerminationThe initial stages of the growth of seeds into a seedling. The embryonic shoot (plumule) and embryonic plant...
- Seed ProtectantA chemical applied before planting to protect seeds and seedlings from disease or insects.
- Seed SetSeeds have been produced by the plant.
- Seed ShatteringPhenomena of seed dispersal where seeds are scattered.
- Seed SourcingTo assist with climate adaptation, seed sources are taken from areas where the climate is similar to the...
- Seed TreeTree that produces seeds; usually a superior tree left standing at the time of cutting to produce seeds for...
- Seed tree methodRemoval of the mature timber in one cutting, except for a limited number of seed trees left singly or in...
- Seed TuberTubers that are typically cut for asexual propagation.
- Seed-Borne DiseasesPlant diseases whose causative agents, generally bacteria or fungal spores, can be transmitted by the plant's...
2,959 of 30,736 terms in Environment terminology (MLC-0121). Request the full dataset.