Chemistry terminology · MLC-0109
Chemistry terms: Z (41)
- (Z + 1)-average molar massA type of molar mass average for a polymer sample, weighted by the square of the molar mass and the z-average...
- Z factorA dimensionless statistic for judging how well a screening assay performs in the presence of test compounds...
- Z₅₀A measure of the fatigue resistance of a photochromic compound, given as the number of colouring and...
- z-average molar massAn average molar mass in which each chain is weighted by w times M squared, computed as the sum of w M^2...
- z-average particle diameterA mean particle diameter weighted heavily toward large particles, defined as the sum of N times d to the...
- Zeeman effectThe splitting of spectral lines of an atom or molecule into multiple components when the source of the light...
- Zeeman levelsThe splitting of atomic or molecular energy levels into multiple closely spaced sub-levels when subjected to...
- ZeptoA decimal submultiple prefix of the SI meaning one sextillionth, 10 to the power minus 21, with symbol z. It...
- Zero differential overlap approximationA simplifying assumption used in semi-empirical molecular orbital calculations, where all two-electron...
- Zero field splittingThe lifting of the degeneracy of spin sublevels in a paramagnetic species with spin greater than 1/2 even...
- Zero fillingA processing step in Fourier transform spectroscopy in which zeros are appended to a free induction decay or...
- Zero path differenceThe point in an interferometer where the optical path lengths of the two arms are exactly equal. At this...
- Zero pointThe pH value at which a pH measuring cell, built from a pH electrode and a chosen outer reference electrode...
- Zero point of scaleThe reading of a measuring instrument when the quantity being measured has a value of zero. This point serves...
- Zero-field nuclear magnetic resonance spectroscopyA variant of nuclear magnetic resonance spectroscopy in which spectra are acquired in an environment screened...
- Zero-one behaviourA limiting regime in emulsion polymerization in which a particle holds either no growing radical or one...
- Zero-order kineticsA reaction rate where the rate of a process is independent of the concentration of the reactant. This means...
- Zero-point energyThe minimum possible energy that a quantum mechanical system can possess, even at absolute zero temperature...
- Zero-zero absorption or emissionThe electronic transition between the lowest vibrational level of the ground electronic state and the lowest...
- Zeta chain-associated protein kinase-70 kDaA tyrosine kinase enzyme expressed in T lymphocytes and natural killer cells that is integral to initiating...
- ZettaA decimal SI prefix meaning one sextillion, 10 to the power 21, with symbol Z. It is used for very large...
- Zig-zag projectionA two-dimensional representation of a carbon chain where the main chain is depicted in a zig-zag fashion...
- Zimm plotA graphical method used to determine the molecular weight, radius of gyration, and second virial coefficient...
- Zinc fingerA structural motif within a protein where a zinc ion is tetrahedrally bound by the side chains of cysteine or...
- z-ionA peptide fragment ion that contains the C-terminus, formed when the backbone breaks at the N-C(alpha) bond...
- Zona pellucidaA specialized extracellular matrix composed of glycoproteins that surrounds the plasma membrane of a...
- ZoneA region within a chromatographic column or separation system where a particular component or group of...
- Zone melting method of preconcentrationA technique used for purifying solid materials or preconcentrating trace impurities by creating a molten zone...
- Zone pHThe plateau pH at which a solute elutes as a rectangular band in pH-zone-refining counter-current...
- ZoocideA chemical substance intended for killing animals. This general classification includes more specific agents...
- ZooplanktonHeterotrophic planktonic organisms that drift in oceans, seas, and freshwater bodies, consuming phytoplankton...
- Zucker-Hammett hypothesisA mechanistic criterion for acid-catalysed reactions that links the acid dependence of the rate to the role...
- Z-valueA solvent polarity parameter derived from the solvatochromic shift of the charge-transfer absorption band of...
- Zwitterionic copolymerisationA copolymerization that proceeds by a zwitterionic mechanism, in which the growing chain carries a cation at...
- Zwitterionic polymerA polymer containing both positively and negatively charged groups within its repeating units, resulting in...
- Zwitterionic polymerisationA chain polymerization in which the growing macromolecule carries two ionic chain carriers of opposite...
- ZwitterionsNeutral molecules that possess both positive and negative formal charges on different atoms within the same...
- ZygosisThe union of two gametes to form a zygote during the process of fertilization. This event involves the fusion...
- ZygoteThe initial diploid cell produced through the fusion of two haploid gametes, such as an egg and a sperm...
- Zygote intrafallopian transferAn assisted reproductive technology procedure where a fertilized egg (zygote) is transferred into the...
- ZymosanA complex carbohydrate derived from the cell walls of yeast, primarily Saccharomyces cerevisiae, known for...
41 of 13,676 terms in Chemistry terminology (MLC-0109). Request the full dataset.