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All Words Glossary

Glossary of Chemistry Terms
beginning with letter V
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valence electron Tweet Definition of valence electron Like Definition of valence electron on Facebook
noun
  1. (chemistry) any of the electrons in the outermost shell of an atom; capable of forming bonds with other atoms
valency Tweet Definition of valency Like Definition of valency on Facebook
noun
  1. (graphtheory) The number of edges connected to a vertex in a graph
  2. (chemistry) (mostly British) valence
  3. (linguistics) The capacity of a verb to take a specific number of arguments
    (wikipedia, valency (linguistics))
valeric acid Tweet Definition of valeric acid Like Definition of valeric acid on Facebook
noun
  1. (chemistry) a short chain aliphatic carboxylic acid, CH3(CH2)3COOH, obtained from the roots of valerian; used in perfume, flavourings, pharmaceuticals
vanadate Tweet Definition of vanadate Like Definition of vanadate on Facebook
noun
  1. (chemistry) any salt of vanadic acid
  2. (chemistry) any of the corresponding anions, VO3, VO4, or V2O7
vanadic acid Tweet Definition of vanadic acid Like Definition of vanadic acid on Facebook
noun
  1. (chemistry) any of various hydrated forms of vanadium pentoxide
vanadium Tweet Definition of vanadium Like Definition of vanadium on Facebook
noun
  1. A chemical element , (symbol V) with an atomic number of 23; it is a transition metal, used in the production of specialist steels.
vanadium pentoxide Tweet Definition of vanadium pentoxide Like Definition of vanadium pentoxide on Facebook
noun (wikipedia, Vanadium(V) oxide)
  1. (chemistry) an orange crystalline powder, V2O5, used as a catalyst in the production of sulphuric acid etc.
vanillin Tweet Definition of vanillin Like Definition of vanillin on Facebook
noun
  1. The name of a chemical compound, 4-hydroxy-3-methoxybenzaldehyde, which is the primary constituent of vanilla.
  2. Synthetic compound used as a substitute for the extract of the vanilla bean.
varnish Tweet Definition of varnish Like Definition of varnish on Facebook
noun
  1. A type of paint with a solvent that evaporates to leave a hard, transparent, glossy film.
  2. Anything resembling such a paint.
  3. By extension: A deceptively showy appearance.
verb (varnish, es)
  1. (intransitive) To apply varnish.
  2. (transitive) To cover up with varnish.
  3. (transitive) To gloss over a defect.
Venus Tweet Definition of Venus Like Definition of Venus on Facebook
proper noun
  1. (Roman mythology) the goddess of love, beauty, and natural productivity
  2. The second planet in our solar system, named for the goddess; represented in astronomy and astrology by ™€.
VI Tweet Definition of VI Like Definition of VI on Facebook
abbreviation
  1. US Virgin Islands
vinyl Tweet Definition of vinyl Like Definition of vinyl on Facebook
noun
  1. (context, chemistry, uncountable) The univalent radical CH2=CH−, derived from ethylene
  2. (countable) Any of various compounds and substances containing the vinyl radical, especially various tough, flexible, shiny plastics
  3. (context, collectively, uncountable) phonograph record, Phonograph records as a medium
    Many DJs prefer vinyl to CDs.
adjective
  1. (chemistry) containing the vinyl radical
  2. Made of polyvinyl chloride.
vinyl chloride Tweet Definition of vinyl chloride Like Definition of vinyl chloride on Facebook
noun
  1. (chemistry) A colourless gas, CH2=CHCl, used in the manufacture of the plastic polyvinyl chloride
viscose Tweet Definition of viscose Like Definition of viscose on Facebook
noun
  1. A viscous orange-brown liquid obtained by chemical treatment of cellulose and used as the basis of manufacturng rayon and cellulose film.
  2. A fabric made from this material.
vitriol Tweet Definition of vitriol Like Definition of vitriol on Facebook
noun
  1. (dated) sulphuric acid and various metal sulphates
  2. (context, by extension) bitterly abusive language; invective or vituperation
vitriolic Tweet Definition of vitriolic Like Definition of vitriolic on Facebook
adjective
  1. of, derived from, or similar to a vitriol
  2. bitterly scathing; caustic: vitriolic criticism
  3. (chemistry): Of or pertaining to vitriol; derived from, or resembling, vitriol; vitriolous; as, a vitriolic taste.
volatile Tweet Definition of volatile Like Definition of volatile on Facebook
adjective
  1. (physics) evaporating or vaporizing readily under normal conditions
  2. (chemistry) (informal) explosive
  3. (context, of a price etc) variable or erratic
  4. fickle
  5. temporary or ephemeral
  6. (context, of a situation) potentially violent
vulcanize Tweet Definition of vulcanize Like Definition of vulcanize on Facebook
verb (vulcanizes, vulcanizing, vulcanized, vulcanized)
  1. To treat rubber with heat and (usually) sulphur to harden it and make it more durable.

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