Industrial and trades terminology · MLC-0113

Industrial and trades terms: S (900)

Page 2 of 2

• SouthbridgeA microchip on a computer's motherboard responsible for managing the slower input/output functions. It...
• Space chargeAn accumulation of net electric charge within a region of a vacuum tube, semiconductor, or other device...
• Space lineA blank line of type used in letterpress printing to create vertical separation between paragraphs or...
• Space medicineA specialized field of medicine focused on the health and performance of humans in space environments. It...
• Space outTo increase the spacing between words, letters, or lines of text to achieve a desired visual effect or to fit...
• Space permeabilityA fundamental physical constant representing the permeability of free space, denoted by the symbol μ₀. It...
• Space probeAn uncrewed spacecraft designed to explore distant celestial bodies, such as planets, moons, asteroids, or...
• Space ruleA thin metal strip used in letterpress printing to create a horizontal line or border, often for separating...
• Space suppressionA technique in digital typesetting and printing where unnecessary blank spaces are removed or reduced to...
• Space-basedDescribing systems, instruments, or operations that are located or conducted in outer space, typically on...
• SpacecraftA vehicle or device designed to travel in outer space, carrying either crew or instruments for exploration...
• SpaceshipA crewed or uncrewed vehicle designed for flight in outer space, beyond Earth's atmosphere. Maintenance...
• SpacistorA type of multi-terminal solid-state semiconductor device developed in the 1950s, designed to operate at...
• SpadA small, pointed metal pin driven into the roof or side of a mine working to establish a survey station. This...
• SpadeA type of electrical terminal featuring a flat, U-shaped or fork-shaped end designed to be secured under a...
• SpaltingThe discoloration of wood caused by fungi, resulting in unique patterns and lines that are highly prized in...
• SpanThe distance between two intermediate supports for a structure, such as a beam, arch, or truss. This...
• SpandrelThe panel or section of a building's exterior wall located between the top of a window on one story and the...
• SpanishingA decorative finishing technique applied to the edges of books or other printed materials, involving the...
• Spark testA non-destructive method used to identify different types of ferrous metals by observing the characteristics...
• Sparrow criterionA criterion for optical resolution stating that two point sources are just resolved when the dip between...
• Sparrow's resolution limitA criterion for optical resolution that states two incoherent point sources are just resolved when the second...
• SpatA removable or integrated panel that covers part of a vehicle's wheel opening, typically the upper rear...
• SpawnMycelium, the vegetative part of a fungus, grown on a substrate such as grain, sawdust, or wood chips, used...
• SPDAn abbreviation for Surge Protective Device, an apparatus designed to protect electrical equipment from...
• SPEA type of electrical connector designed for single-pair Ethernet applications, enabling data transmission and...
• SpeakingThe unwanted transfer of an electrical signal from one conductor or circuit to another, a form of crosstalk...
• Specialty cropA classification for plants cultivated for food, medicinal purposes, or aesthetic value, distinct from...
• SpectacleThe part of a railway semaphore signal arm that holds colored glass lenses, which are displayed in front of a...
• Spectral gatingA signal processing technique used to isolate and analyze a specific portion of a signal in both the time and...
• SpectropolarimeterAn optical instrument that measures the polarization state of light as a function of its wavelength. It...
• SpectrumThe range of frequencies over which electromagnetic radiation extends, or a particular portion of this range...
• SpeedballA handheld, manually operated dispenser for applying sealant or adhesive, consisting of a handle and a...
• SpeederA small, self-propelled railway vehicle used by maintenance-of-way crews for inspecting track, transporting...
• SpendThe process of excavating or driving a mine working, such as a tunnel or drift, through barren or uneconomic...
• SpezzatoA decorative finish or technique that incorporates small, irregular pieces of material, such as stone, glass...
• Spherical aberrationAn optical aberration where light rays passing through a spherical lens or mirror at different distances from...
• SpherizeTo process a material or object into a spherical or near-spherical shape. This technique is applied to...
• SpherocylindricalDescribing a lens or optical surface that combines both spherical and cylindrical curvature. This type of...
• SpheroidizeTo heat treat steel to produce a microstructure where the cementite (iron carbide) forms into spherical...
• SpherometerA precision instrument used to measure the radius of curvature of a spherical surface or the thickness of a...
• SPIA synchronous serial communication interface specification used for short-distance communication, primarily...
• SpicatumA pattern of arrangement where rectangular components, such as bricks, tiles, or wood blocks, are laid in...
• SpikerA specialized machine used in railway track construction and maintenance to drive spikes into wooden sleepers...
• SpillLoose rock, ore, or waste material that falls from a conveyor belt, chute, or mine car during transport. This...
• SpimA device configured as the master in a Serial Peripheral Interface (SPI) communication bus, a synchronous...
• SpinTo rotate an object rapidly around its own axis, or the resulting rotational motion itself. In manufacturing...
• Spin magnetic momentThe intrinsic magnetic dipole moment possessed by elementary particles, such as electrons and protons, due to...
• Spin outTo lose control of a vehicle, causing it to rotate rapidly on its own axis, often due to excessive speed...
• SpinifexA genus of tough, spiky grasses native to arid regions of Australia, forming dense, hummocky clumps. These...
• Spinner knobA small, rotating knob attached to the rim of a steering wheel, designed to assist in one-handed steering...
• SpinoutA loss of vehicle control where the rear wheels lose traction and swing outwards, causing the vehicle to...
• SpiralA type of transition curve used in railway track design to gradually change the curvature from a tangent...
• SpireA tall, pointed rock formation or pinnacle that projects upwards from a larger rock mass or terrain. In...
• Spirit duplicatorA type of printing machine that uses a master sheet to transfer an image onto paper via an alcohol-based...
• Spirit masterA specialized sheet used in a spirit duplicator, consisting of a top sheet for typing or drawing and a...
• SplayA flared or angled surface at a road junction or vehicle access point designed to improve visibility for...
• SpliceTo join two or more conductors, such as wires or optical fibers, permanently to establish electrical...
• Splice graftingA method of plant propagation where a scion (a shoot or bud) is joined to a rootstock by making matching...
• Splice tapeA specialized adhesive tape used to join the ends of two materials, such as paper, film, or magnetic tape, in...
• SplineA thin, flat strip of wood or other material inserted into corresponding grooves cut into the edges of two...
• SplitTo divide a continuous material, such as a web or sheet, into narrower sections. This process is performed by...
• Split rimA type of wheel rim construction where the rim is composed of two or more separate pieces that are bolted or...
• Split slabA two-layer concrete slab system where a structural slab supports a separate, non-structural topping slab...
• Split-phase powerA type of single-phase alternating current electrical power distribution that uses three wires: two live...
• Split-ringA type of commutator segment used in direct current (DC) motors and generators to reverse the direction of...
• SPMA family of instruments known as Scanning Probe Microscopes used to create images of surfaces at the atomic...
• SpoilTo disrupt the smooth flow of air over an aerodynamic surface, thereby decreasing lift and increasing drag...
• SpoilerAn aerodynamic device attached to a vehicle's bodywork, designed to disrupt unfavorable air movement across...
• SpokeOne of the radial bars connecting the hub to the rim of a ship's steering wheel. These components allow a...
• SpoolA complete rotating assembly within a gas turbine engine, consisting of a compressor, a connecting shaft, and...
• SpoolerA machine or device that winds continuous material onto a spool, reel, or bobbin. This equipment manages the...
• SpotTo precisely position a rail car or locomotive at a specific location for a particular task, such as loading...
• Spot beamA focused, high-power radio frequency signal transmitted from a satellite or antenna, covering a relatively...
• Spot colorA pre-mixed ink, rather than a combination of process colors (cyan, magenta, yellow, and black), used to...
• Spot UVA printing technique where a clear, glossy ultraviolet (UV) coating is applied to specific areas of a printed...
• SprayA method of applying a coating, such as paint, lubricant, or molten metal, by atomizing the material into...
• Spray drainA valve or port on an agricultural sprayer system designed for emptying the contents of the tank and boom...
• SpringA mooring line used to prevent a vessel from moving fore and aft along a dock or pier. These lines run...
• Spring beamA horizontal structural member that supports the ends of rafters or joists, typically found in roof or floor...
• Spring saddleA component in a locomotive's suspension system that supports the weight of the engine frame on the driving...
• SprocketA toothed wheel designed to engage with a chain, track, or other perforated material, transmitting rotary...
• SproutA young shoot or bud emerging from a seed, plant, or tuber, indicating the beginning of new growth. Sprouts...
• Spruce tipThe new, soft, light-green growth that emerges from the ends of spruce tree branches in the spring. These...
• SprueThe vertical channel in a mold through which molten material is first poured during the casting process. It...
• SPSA Standby Power System designed to provide near-instantaneous backup electricity to a critical load during a...
• SpudA threaded fitting or opening on a plumbing fixture, such as a toilet or urinal, that allows for the...
• Spud washerA specialized rubber or neoprene washer designed to create a watertight seal between a toilet bowl and its...
• SpudgerA hand tool with a flat, often pointed or wedge-shaped, non-conductive tip, used for prying open electronic...
• SpunlaidA nonwoven fabric manufacturing process where molten polymer is extruded through spinnerets to form...
• SpurA sharp point on the circumference of a drill bit, designed to score the wood fibers before the main cutting...
• Spur gearA cylindrical gear with straight teeth cut parallel to the axis of rotation, used to transmit power and...
• SpurnA small pillar or buttress of coal or rock left in place to provide localized support or to protect a corner...
• SPVSAn electrical power generation system that converts sunlight directly into electricity using photovoltaic...
• SquabbleA condition in letterpress printing where type characters or blocks become disarranged or fall out of their...
• SquareA unit of area measurement used in roofing, equivalent to 100 square feet. This unit simplifies the...
• Square tab shingleAn asphalt shingle characterized by a uniform, rectangular cutout pattern along its lower edge, creating the...
• Square upTo machine a workpiece so that its adjacent faces or features are precisely perpendicular to one another. The...
• SqueegeeA tool featuring a flat, smooth rubber or silicone blade attached to a handle, used to remove liquid from a...
• SqueezeThe gradual closure or reduction in size of a mine working due to pressure from the surrounding rock mass...
• SqueggingA form of self-oscillation in an amplifier or oscillator circuit where the primary high-frequency oscillation...
• SquelchA circuit function in radio receivers that suppresses audio output when the incoming signal strength falls...
• SquibA small pyrotechnic device used in automotive safety systems, primarily to deploy airbags or activate...
• Squirrel-cage motorA type of AC induction motor where the rotor consists of a cylinder of laminated steel with conductive bars...
• SRAn abbreviation for Southern Railway, one of the 'Big Four' British railway companies formed in 1923 under...
• SRAMA type of semiconductor memory that uses bistable latching circuitry to store each bit. Unlike DRAM, SRAM...
• SRBAn abbreviation for Solid Rocket Booster, a large rocket motor that uses a solid propellant mixture to...
• SRCA Short Range Certificate is a qualification required for operating marine VHF (Very High Frequency) radio...
• SRESA set of greenhouse gas emissions scenarios, detailed in the Intergovernmental Panel on Climate Change (IPCC)...
• SRMSupplier Relationship Management: A systematic approach to evaluating and interacting with suppliers of goods...
• SRSAn acronym for Supplemental Restraint System, a passive safety feature in vehicles designed to work with seat...
• S/SAn abbreviation for stainless steel, an alloy of iron with a minimum of 10.5% chromium content by mass. This...
• SSThe abbreviation for stainless steel, an alloy of iron with a minimum of 10.5% chromium, known for its...
• SSASpace Situational Awareness, the understanding of the space environment, including the location and function...
• SSBA type of amplitude modulation used in radio communications that reduces power consumption and bandwidth by...
• SSDA data storage device that uses integrated circuit assemblies as memory to store data persistently. Unlike...
• SSEDAn initiator, known as a Solid State Explosive Device, that uses an electronic signal to set off a...
• SSISmall-scale integration (SSI) describes integrated circuits that contain a limited number of transistors...
• SSKA knitting abbreviation meaning "slip, slip, knit," a method for decreasing stitches that creates a...
• SSLA form of illumination, known as Solid-State Lighting, that generates light from a semiconductor device...
• SSPA document, known as a Signalling Scheme Plan, that provides a detailed geographical layout of a railway...
• SSTOSingle-Stage-To-Orbit: A type of reusable launch vehicle that reaches Earth orbit from the surface using only...
• S&TAn abbreviation for the Signals and Telecommunications department or systems within a railway organization...
• St stAn abbreviation for 'stockinette stitch' in knitting, a basic stitch pattern that produces a smooth, V-shaped...
• STAAn analysis method in digital circuit design, known as Static Timing Analysis (STA), that verifies the timing...
• StabilizerA chemical additive incorporated into a material to prevent or slow its degradation over time due to exposure...
• Stabling sidingA section of railway track used for parking or storing locomotives, railway cars, or entire train sets when...
• Stack talkThe distinctive sound produced by the exhaust system of a diesel locomotive, particularly older models, as...
• StaddleA small, young tree, often a sapling or a pole-sized tree, that has been left to grow after a coppicing or...
• StadiaA method of indirectly measuring distances and elevations using a telescopic instrument equipped with two...
• Stadia hairOne of two short, parallel, horizontal lines etched on the reticle of a surveying telescope, positioned above...
• StadiumA former unit of length, originating in ancient Greece, approximately equal to 185 meters or 607 feet. In...
• StaffA long, graduated rod used in surveying and leveling to measure vertical distances or differences in...
• StageA distinct section or phase within a multi-step process or a multi-component system, where a specific...
• StaggerThe relative fore-and-aft position of the wings on a biplane or triplane, where the upper wing is either...
• StaggeredDescribing the arrangement of rail joints on opposite rails, where the joints are not directly across from...
• Stag-headedDescribing a tree that has dead branches or a dead crown, particularly at the top, while the lower parts of...
• StaitheA pier, jetty, or similar waterside structure equipped with railway tracks for transferring bulk cargo, such...
• StakebedA type of truck body featuring a flat, open bed with removable vertical stakes or panels along the sides and...
• StalkA refractory tube used in low-pressure casting processes to convey molten metal from a holding furnace into...
• Stalk-cutterA farm implement that chops or shreds plant residue, such as corn stalks or cotton plants, left in a field...
• StallA condition where a machine or process ceases to operate or progress due to an overload, obstruction, or...
• StallmanA miner who works in a stall, responsible for extracting coal or other minerals from a specific working face...
• StandA contiguous group of trees sufficiently uniform in age class distribution, composition, structure, site...
• StandageThe capacity of a mine or a specific area within it to hold or store materials, such as broken ore, coal, or...
• StandardA documented agreement containing technical specifications or other precise criteria to be used consistently...
• Standard gaugeThe specific distance between the inner faces of the two rails of a railway track, defined as 4 feet 8½...
• StandbyA state of readiness for a vehicle, equipment, or personnel, indicating that it is available for immediate...
• Standby timeThe continuous duration for which a battery-powered device, such as a mobile phone or laptop, can remain...
• Standing cropA crop that is still growing in the field and has not yet been harvested. This includes plants from the time...
• Standing seamA type of metal roofing system characterized by raised interlocking seams that run vertically up the roof...
• StankA temporary dam or barrier constructed within a mine passage to control the flow of water or air. These...
• StapleA vertical or steeply inclined internal shaft that connects different levels or seams within an underground...
• StarA quality control pattern in printing, consisting of fine lines radiating from a central point. It is used to...
• Star plateA metal connector plate with multiple sharp, pointed projections or teeth, used to join timber members in...
• StarfighterA common name for the Lockheed F-104, a supersonic interceptor aircraft developed for the United States Air...
• StarlingA protective structure built around the base of a bridge pier, designed to reduce the effects of water flow...
• StartA young plant, also known as a transplant or seedling, that has been germinated and grown in a controlled...
• Starter motorAn electric motor, typically powered by a vehicle's battery, designed to crank an internal combustion engine...
• Starter stripA narrow band of roofing material installed along the eaves of a roof deck before the first course of...
• Starting handleA removable crank handle used to manually rotate the crankshaft of an internal combustion engine to start it...
• Starting signalA railway signal positioned at the departure end of a station platform or siding, indicating whether a train...
• StashA personal collection of craft materials, particularly yarn or fabric, accumulated by a crafter for future...
• Static IP addressA permanent, unchanging Internet Protocol address assigned to a device on a network, rather than one that is...
• Static loadA constant, non-moving force or weight applied to a structure over an extended period. This includes the...
• StationAn excavation or enlarged chamber created at the side of a mine shaft or incline. It serves as a primary...
• Station wagonA body style of automobile characterized by a two-box design with an extended roofline and a rear cargo area...
• StationmasterThe official in charge of a railway station, responsible for its overall operation, staff, and the safety of...
• Station-to-stationA type of telephone call billing where charges begin when the receiving telephone is answered, regardless of...
• StayA strong rope or wire supporting a mast or spar, running from its top to another part of the vessel, such as...
• STDAn abbreviation for Subscriber Trunk Dialing, a system that allows telephone subscribers to dial...
• StealerA plate or strake in shipbuilding that is tapered or cut short to accommodate the narrowing form of the hull...
• StealthDescribing aircraft or technology designed to avoid detection by radar, infrared, sonar, and other sensing...
• Steam generatorA device used on diesel or electric locomotives to produce steam for heating passenger cars, a function...
• Steam locomotiveA type of railway locomotive that produces its motive power by heating water in a boiler to generate steam...
• Steam shovelA heavy construction machine that uses steam power to operate a digging bucket and boom for excavation work...
• SteekA technique in knitting where a column of stitches is intentionally created and then cut to form an opening...
• SteelA hard, durable alloy of iron and carbon used to make components for printing machinery, such as gears...
• SteelworkThe structural framework of a building or other construction project made from steel components, including...
• Steely-eyed missile manAn informal, often complimentary, term used to describe highly skilled and focused engineers, technicians, or...
• Steep-slope roofA roof design characterized by a pitch greater than 4:12, meaning it rises four inches or more for every...
• Steering columnThe housing that connects the steering wheel to the steering mechanism of a vehicle. It contains the main...
• Steering wheel spinner knobAn aftermarket accessory attached to a steering wheel, allowing for one-handed steering with reduced effort...
• Steiner pointA point generated during the construction of a Steiner tree, which is a minimal-length network connecting a...
• StemThe foremost part of a ship's bow, forming the leading edge of the hull. It is the point where the sides of...
• StempelA timber prop or post used as a temporary support in underground mine workings to prevent rock falls. These...
• Stench trapA U-shaped or S-shaped section of pipe designed to hold a small amount of water, forming a liquid seal that...
• StenopaeicRelating to a small aperture or pinhole used to improve visual acuity by reducing the effects of refractive...
• Step flashingIndividual pieces of flashing material bent at a 90-degree angle and woven into the courses of shingles or...
• Step onTo inadvertently transmit on a radio frequency already in use by another station, causing interference or...
• Step on itAn informal command to press the accelerator pedal forcefully in order to increase a vehicle's speed quickly...
• StepsideA style of pickup truck bed characterized by distinct, separate fenders over the rear wheels and a step or...
• StereotomyThe art and science of cutting stones into specific shapes to form complex structures, such as arches...
• StereotypeA duplicate printing plate made from a mold of an original type form or engraving, typically cast in metal...
• StereotypographyThe process of creating and using stereotypes, which are duplicate printing plates cast from an original type...
• StereotypyThe process of creating a stereotype, which is a duplicate printing plate made from a mold of an original...
• SterlingA type of oriented strand board (OSB) sheathing, named after the Sterling Board brand originally produced in...
• StewardA member of a ship's crew responsible for attending to the needs of passengers and other crew members...
• StickTo apply solid pieces of wood, known as sticking or moulding, to the edges of a door or window sash's stiles...
• Stick clipA device consisting of a grasping mechanism attached to an extendable pole, used to place a rope into an...
• StickfulA measure of composed type that fills a composing stick, a handheld tray used by typesetters to assemble...
• StickyDescribing a material or surface that adheres to other surfaces upon contact, resisting separation. This...
• Sticky bitA permission bit in Unix-like file systems that affects how files within a directory are handled. When set on...
• StiffDescribing a vessel that resists heeling or rolling when subjected to external forces, such as wind or waves...
• StiffenerA structural component, such as a plate, angle, or channel, added to a larger member to increase its rigidity...
• StigmatismThe optical condition where a lens or mirror focuses light rays from a single point source to a single, sharp...
• StigmatypyA printing defect characterized by the appearance of small, unwanted marks or dots on the printed surface...
• StirrupA closed loop of reinforcing bar or wire that encloses the main longitudinal reinforcement in concrete beams...
• StitchA method of joining two pieces of material, such as fabric or leather, using a needle and thread. In...
• StockA supply of raw materials, components, or finished goods held by a manufacturer for future use or sale...
• Stock carA type of railway freight car specifically designed for transporting livestock, such as cattle, sheep, or...
• Stock vehicleA vehicle that has not been modified from its original manufacturer's factory configuration. This means it...
• StockerA young animal, typically a calf or yearling, that is being raised on pasture or forage before being moved to...
• StockingA measure of the number of trees or the amount of timber volume on a given area of forest land, relative to a...
• StockpileA large accumulation of mined ore, waste rock, or processed material stored on the surface, awaiting further...
• StockworkA mineral deposit characterized by a complex network of small, intersecting veins or veinlets within a larger...
• StoneA large, flat, smooth surface, traditionally made of stone or metal, used in letterpress printing for...
• Stone mulchingThe agricultural and landscaping practice of covering the soil surface with a layer of rocks, gravel, or...
• Stone subeditorA proofreader or editor in a traditional letterpress workshop who performs a final check of the composed type...
• StonemanA mine worker specializing in the excavation of rock, as opposed to coal or ore. The stoneman's primary task...
• StookerA farm implement designed to gather sheaves of grain, such as wheat or oats, and arrange them into conical...
• StoolThe base of a plant, such as a shrub or herbaceous perennial, from which new shoots or tillers arise from the...
• Stop offTo apply a protective coating to specific areas of a metal part before a surface treatment process, such as...
• Stop signA regulatory traffic control device, octagonal in shape with a white border and the word "STOP" in white...
• Stop the jobA safety protocol or procedure that empowers any worker to halt an operation or task immediately if they...
• StopeAn underground excavation created in a mine from which ore is extracted. This void is formed by removing the...
• StoperA type of rock drill specifically designed for drilling upward or at steep angles in underground mining...
• StopingThe process of extracting ore from an underground mine by creating large, open excavations called stopes...
• StopperA type of railway signal, also known as an absolute signal, that conveys a simple stop or proceed instruction...
• StoppingA barrier constructed in an underground mine passage to control the flow of air for ventilation purposes...
• StorageThe retention of data in an electromagnetic or optical form so it can be retrieved later by a computer or...
• Storage deviceA piece of computer hardware used for saving, carrying, and retrieving digital data. These devices can be...
• Storage mediumA physical material or device on which digital data is recorded and can be retrieved at a later time. In...
• Storage stationA facility within an electrical grid designed for large-scale energy storage, allowing electricity to be...
• Storage timeThe duration a semiconductor device, such as a diode or transistor, remains in a conducting state after the...
• Storage tubeA vacuum tube that retains an image or data for an extended period, often used in early computer displays and...
• Store and forwardA method of transmitting data in communication networks where a message is received in its entirety at an...
• StormA meteorological disturbance characterized by strong winds, precipitation like rain, snow, or hail, and...
• StowingThe process of backfilling voids in underground mines, such as stopes, with waste rock, tailings, or other...
• STPAn abbreviation for a sewage treatment plant, a facility that processes wastewater and sewage from domestic...
• Straddling busA type of public transport vehicle designed to travel above road traffic on elevated tracks, with its...
• StraightDescribing a cable or connection where the pin-out configuration at one end directly matches the pin-out at...
• Straight-eightAn internal combustion engine configuration featuring eight cylinders arranged in a single, straight line...
• Straight-pipeA modification to a vehicle's exhaust system where mufflers, catalytic converters, and resonators are...
• Straight-pipedDescribing an exhaust system on an internal combustion engine that has had its mufflers, catalytic...
• Straight-sixAn internal combustion engine configuration featuring six cylinders arranged in a single, straight line. This...
• StrandA single, thin filament of conductive material, such as copper or aluminum, that is twisted or bundled with...
• StrapA thin, flat piece of metal or wood used to fasten, reinforce, or secure structural components. Straps are...
• Strap railAn early form of railway track consisting of thin iron strips or 'straps' fastened to wooden beams or...
• Strap-onReferring to solid rocket boosters or liquid fuel tanks that are attached to the exterior of a larger launch...
• StrapperA machine that automatically or semi-automatically applies, tensions, and seals a strap of plastic or metal...
• StratificationThe process of treating seeds to simulate natural winter conditions, thereby breaking dormancy and promoting...
• Straw nailA thin, long nail with a small head, designed for light-duty fastening where splitting the wood is a concern...
• Stream straightenerA device fitted inside a fire nozzle that reduces turbulence and creates a more cohesive, solid stream of...
• StreamerA long, buoyant cable containing hydrophones, towed behind a seismic vessel to detect reflected acoustic...
• Streaming encoderA device or software application that converts raw audio and video signals into a compressed digital format...
• Streaming tapeA magnetic tape drive and its associated media designed for continuous, high-speed data transfer, primarily...
• StreamworkA method of alluvial mining that recovers heavy minerals from the sands and gravels of a stream bed. The...
• Streamworks, see Streamwork
• StressableRelating to a structural component, particularly a steel tendon or bar, designed to be tensioned in a...
• Stretcher bondA common brickwork pattern where all bricks are laid as stretchers, meaning their longest face is exposed on...
• Stretching courseA layer of bricks or masonry units laid with their longest dimension parallel to the face of the wall...
• StriationA fine, parallel groove or scratch on a surface, often resulting from mechanical abrasion, wear, or a...
• StrickenDescribing a vessel that has been formally removed from a naval register or list of commissioned ships. A...
• StrickleA tool used in foundry work to shape sand molds or cores to a specific contour or profile. It consists of a...
• StrikeTo remove formwork from newly poured concrete after it has gained sufficient strength to support itself. This...
• Strike while the iron is hotTo forge or shape a piece of metal by hammering it at the correct elevated temperature, before it cools and...
• StrikeoverA printing technique where new text or graphics are printed directly on top of existing printed material...
• StringA long, thin piece of twisted fibers, such as cotton or nylon, used in carpentry for marking straight lines...
• String trimmerA power tool used for cutting grass and weeds in areas inaccessible to lawnmowers, such as around obstacles...
• StringerA heavy timber or beam that supports the main load of a structure, such as a floor, deck, or staircase. In...
• StringpieceA structural member in a staircase that supports the ends of the treads and risers. It runs diagonally from...
• Strip croppingA method of farming where different crops are grown in alternating strips, typically along the contours of a...
• StripeA linear marking or band of contrasting color or texture applied to a surface during a manufacturing process...
• StriplingA tall, fast-grown tree seedling, prepared for planting by removing its lower branches and leaves to reduce...
• StripperA tool or chemical agent used to remove a layer of material from a surface. In electrical work, a wire...
• StrokeThe full range of motion of a piston, ram, or other reciprocating component within a machine or engine, from...
• StrokingA finishing process that uses a single-point cutting tool to create a specific surface texture or to remove a...
• StrongbackA heavy beam or timber used to reinforce or stiffen other structural members, such as floor joists or...
• Structured wiringA standardized approach to installing communication cabling within a building, integrating voice, data...
• StrutA structural component designed to resist axial compression, preventing buckling or collapse in a framework...
• StubA short section of transmission line or waveguide that is connected to a main line and terminated in a short...
• Stub axleA short, non-rotating shaft on which a wheel or hub assembly is mounted, allowing it to rotate freely. It is...
• StubbleThe short stalks of grain or other crops remaining in the field after harvesting. This residue can be left on...
• StudA vertical framing member in a wall, providing support for finishes and carrying structural loads from floors...
• Stud finderAn electronic device used to locate the framing studs, joists, or other structural elements hidden behind...
• Studded tireA type of winter tire equipped with small metal or ceramic studs embedded in the tread, designed to enhance...
• Studded tyreA type of winter tire equipped with small metal or ceramic studs embedded in the tread, designed to enhance...
• StuddleA short, stout timber prop used as temporary support in underground mine workings, particularly during the...
• Student driverAn individual who is learning to operate a motor vehicle and has not yet obtained a full driver's license...
• StuffTo pack a stuffing box with packing material to prevent leakage around a rotating or reciprocating shaft...
• StullA timber prop or post installed horizontally or at an angle between the hanging wall and footwall of a stope...
• StulmA horizontal passage or adit driven from a valley or hillside to access underground mine workings, primarily...
• SturtA payment or tribute paid by a miner for the privilege of working a specific length of a mineral vein...
• SubcarrierA secondary carrier wave modulated onto a main carrier wave to transmit additional information without...
• SubdeckThe structural layer of a roof or floor system that provides a continuous surface for the application of...
• SubequigranularDescribing an igneous rock texture where most of the mineral grains are roughly the same size, but with some...
• SubfeedAn electrical circuit that branches off from a main feeder circuit to supply power to a specific load or...
• SubfloorThe structural layer of a floor system that provides a continuous surface over the floor joists, serving as...
• SubmarineTo slide forward under a seatbelt during a collision, often due to improper seatbelt fit or seating position...
• SubmessageA distinct portion of a larger data message, often containing specific information or instructions within a...
• SubmittalA document or physical sample provided by a contractor to the architect or engineer for review and approval...
• SubsatelliteA smaller satellite that orbits a larger, primary satellite, rather than directly orbiting a planet or other...
• Subscriber trunk diallingA telecommunication service that allows telephone subscribers to directly dial long-distance calls without...
• SubsignalA component of a larger, composite electrical signal that carries specific information or a particular...
• Subsistence cropA plant cultivated by a farmer primarily to feed their own family and household, with little to no surplus...
• Subsistence farmingA form of agriculture where farmers grow enough food to feed themselves and their families, with little or no...
• SubstrateThe base material or surface upon which another material is applied, deposited, or processed. It provides the...
• SubtradeA specialized craft or skill within the construction industry, performed by a subcontractor under the general...
• SubtraderA company or individual specializing in a particular aspect of construction work, contracted by a general...
• SubvolcanicRelating to igneous intrusions that form at shallow depths beneath the Earth's surface, often associated with...
• Suck, squeeze, bang, blowA mnemonic phrase describing the four strokes of a typical internal combustion engine: intake (suck)...
• SuckerA shoot or stem that arises from the roots or lower part of the main stem of a plant, often growing...
• Suicide batteryA small, non-rechargeable battery, such as a lithium coin cell, soldered directly onto a circuit board to...
• Suicide cableAn extension cord or adapter built with male connectors on both ends, creating an extremely hazardous...
• SuitA complete set of sails for a boat or ship, designed and cut to work together for a specific range of wind...
• Suit of dittoesA man's suit from the 18th or 19th century consisting of a coat, waistcoat, and trousers all made from the...
• SullageThe accumulation of dross, slag, or other impurities that float on the surface of molten metal in a crucible...
• SummatorAn electronic circuit, also known as an adder, that produces an output voltage or current proportional to the...
• Summer tireA type of automotive tire designed for optimal performance in warm weather conditions, typically above 45...
• SummitThe highest point of elevation on a railway line or a particular section of track between two valleys...
• SumpA pit or reservoir in a basement or low-lying area designed to collect unwanted water, preventing flooding...
• SumpmanA mine worker responsible for the operation and maintenance of pumps and drainage systems located in sumps...
• Sun visorA hinged flap located above the windshield inside a vehicle, designed to block direct sunlight from the...
• SunflowerA type of railway signal head that displays aspects using a circular arrangement of lights, resembling a...
• SunfrockA lightweight, informal dress, often sleeveless and with a simple cut, designed to be worn in warm and sunny...
• SunroofA movable panel in the roof of an automobile that allows light and fresh air into the passenger compartment...
• Super high frequencyA designation for electromagnetic waves in the microwave range, specifically those with frequencies between 3...
• SuperalloyA metallic alloy engineered to provide exceptional mechanical strength, resistance to thermal creep, surface...
• SuperbandA range of radio frequencies in the UHF spectrum, located above the standard broadcast television channels...
• SuperbulkyA classification for very thick yarn used in knitting and crochet, heavier than bulky weight yarn. This yarn...
• SupercargoAn officer on a merchant ship responsible for the cargo and commercial affairs of the voyage. The supercargo...
• SuperchargeTo force more air into an internal combustion engine's cylinders than atmospheric pressure alone would allow...
• SuperchargerA mechanical air compressor that increases the density of air entering an internal combustion engine, thereby...
• SuperdominantDescribing an individual tree in a forest stand that is significantly taller and larger in crown diameter...
• SuperduplexA type of stainless steel characterized by a microstructure containing roughly equal proportions of austenite...
• SuperfloppyA type of floppy disk drive and diskette that offered significantly higher storage capacity than standard...
• SupergroupA grouping of 60 voice channels, formed by combining five basic groups of 12 voice channels each, in a...
• SuperheterodyneA radio receiver design that converts a received radio frequency signal to a fixed intermediate frequency...
• SuperiorA character, such as a number or symbol, that is set in a smaller size and positioned slightly above the...
• SupernodeA theoretical construct in circuit analysis that encompasses a voltage source connected between two...
• SuperplantA very large, highly integrated manufacturing facility that combines multiple production processes, and...
• Supplemental restraint systemA passive safety system in vehicles designed to provide additional protection to occupants in a collision...
• SuppressTo reduce or eliminate an unwanted electrical signal, such as noise, interference, or oscillation, within a...
• Surface-conduction electron-emitter displayA type of flat-panel display technology that uses an array of microscopic electron emitters to excite...
• SurfacemanA mine employee who performs duties on the surface of a mining operation rather than underground...
• Surface-mountDescribing an electronic assembly method where components are soldered directly onto the conductive pads of a...
• Surface-mount technologyA method for constructing electronic circuits by soldering components directly onto conductive pads on the...
• SuspendTo temporarily remove an aircraft or component from service due to a defect, maintenance requirement, or...
• SuspensionThe system of springs, shock absorbers, and linkages that connects a vehicle to its wheels, allowing relative...
• Sustainable developmentAn approach to agricultural progress that balances current production demands with the long-term preservation...
• SustainerThe main engine or propulsion system of a rocket or missile that operates after the initial boost phase...
• SuttleThe net weight of a commodity after deducting the tare, which is the weight of the packaging or container...
• SverdrupA non-SI unit of volume transport, primarily used in oceanography to measure the rate of flow of ocean...
• SVGAn abbreviation for Sliding Plug Van, a type of covered railway goods wagon with large sliding side doors...
• SVoSIPSecure Voice over Session Initiation Protocol, a method for transmitting encrypted voice communications over...
• SwadA thin layer of soft, poor-quality coal, clay, or shale found at the bottom of a coal seam. This material is...
• Swage blockA heavy, multi-sided block of cast iron or steel containing shaped depressions, grooves, and holes used for...
• SwalletA point in a limestone or karst region where a stream or river disappears underground, also known as a...
• SwallowThe opening or throat of a block through which a rope or cable passes. This design allows the rope to run...
• SwayThe lateral, side-to-side rolling motion of a vehicle's body during cornering, lane changes, or when exposed...
• SweatTo join copper pipes and fittings by heating the joint and melting solder into the gap, creating a strong...
• SweepA method of creating large, symmetrical molds in sand casting without using a full pattern. A sweep board...
• SweetenTo remove undesirable acidic or corrosive compounds, such as hydrogen sulfide and mercaptans, from natural...
• SwellyA localized thickening or swelling in a coal seam, or a depression in the mine floor that causes the seam to...
• SWERA method of electrical power distribution, single-wire earth return, that uses one conductor to carry the...
• SwiftA rotating umbrella-like device used in textile production to hold a skein of yarn while it is being wound...
• SwigTo tighten a rope by pulling a bight of it sideways away from its anchor point, creating a temporary...
• SwimcapA close-fitting, flexible head covering worn by swimmers, made from materials like silicone, latex, or lycra...
• SwingThe direction in which a door, gate, or casement window is designed to open, specified as either left-hand or...
• Swing ploughA type of plough that lacks a front wheel or skid, requiring the operator to control its depth and direction...
• SwingleA tool used in the processing of flax or hemp fibers to remove the woody core (shives) from the fibrous outer...
• Swirl flapA small, butterfly-shaped valve located within the intake manifold of some internal combustion engines...
• Swiss-turnA machining process performed on a Swiss-type lathe, where the workpiece feeds axially against a stationary...
• SwitchAn electrical or electronic device that can open or close a circuit, thereby controlling the flow of...
• Switch keeperA device used in railway track systems, particularly in mining operations, to hold a switch point in its...
• SwitchbackA railway track configuration designed to overcome steep gradients by having trains reverse direction at...
• SwitchboardA central panel or assembly that distributes and controls electrical power from one or more sources to...
• SwitcherA small, low-power locomotive designed for moving rail cars within a freight yard, industrial plant, or...
• SwitchgearA centralized assembly of circuit breakers, fuses, and switches that function to control, protect, and...
• SwitchmanA railroad worker responsible for the ground-level operation of track switches and the coupling or uncoupling...
• SwitchroomA dedicated room or enclosure within a building or industrial facility that houses electrical switchgear...
• SwitchyardAn outdoor electrical substation where high-voltage power lines connect to transformers and other equipment...
• SwivelA mechanical joint that permits rotation of an attached part around a single axis. This allows for angular...
• SwordA flat, bar-like component of a loom that carries the reed, which is a comb-like frame used to separate and...
• SymbolA graphical representation used in electrical schematics and diagrams to denote a specific component...
• SympatheticDescribing an addition, alteration, or repair to a building that is designed to be in keeping with the...
• SymplecticDescribing a type of intergrowth texture in minerals where two distinct mineral phases are intimately...
• SymplectiteA mineral aggregate exhibiting a symplectic texture, where two or more minerals are intimately intergrown in...
• SymplectiticDescribing a rock texture characterized by a fine-grained, intimate intergrowth of two or more different...
• SynchroA rotary electrical transformer that measures the angular position of a rotating shaft. It transmits this...
• SynchronizerA component within a manual transmission that matches the rotational speed of a gear to the speed of the...
• Synchronous speedThe rotational speed of the magnetic field in an alternating current (AC) induction motor, determined by the...
• Synthesis gasA mixture of hydrogen and carbon monoxide, sometimes with carbon dioxide and methane, produced from the...
• SynthesizerAn electronic instrument or device that generates audio signals through direct manipulation of electrical...
• SyntonizationThe process of adjusting two or more oscillatory circuits or systems to resonate at the same frequency. This...
• SyntonizeTo adjust the resonant frequency of a circuit or antenna to match that of another circuit or an incoming...
• SyntonyThe condition where two or more resonant circuits are tuned to the same frequency, allowing for maximum...
• SypherA type of overlapping joint, also called a cypher joint, used to connect two pieces of timber end-to-end in...
• System busA set of parallel electrical conductors that transfers data, addresses, and control signals between the main...
• Sziklai pairA compound transistor configuration consisting of two bipolar junction transistors of complementary types...

900 of 7,361 terms in Industrial and trades terminology (MLC-0113). Request the full dataset.