Benzene nucleus
Benzene Ben"zene, n. [From {Benzoin}.] (Chem.) A volatile, very inflammable liquid, {C6H6}, contained in the naphtha produced by the destructive distillation of coal, from which it is separated by fractional distillation. The name is sometimes applied also to the impure commercial product or benzole, and also, but rarely, to a similar mixed product of petroleum. [1913 Webster]

{Benzene nucleus}, {Benzene ring} (Chem.), a closed chain or ring, consisting of six carbon atoms, each with one hydrogen atom attached, regarded as the type from which the aromatic compounds are derived. This ring formula is provisionally accepted as representing the probable constitution of the benzene molecule, {C6H6}, and as the type on which its derivatives are formed. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • benzene nucleus — noun a closed chain of 6 carbon atoms with hydrogen atoms attached • Syn: ↑benzene formula, ↑benzene ring, ↑Kekule formula • Hypernyms: ↑benzene, ↑benzine, ↑benzol * * * noun see …   Useful english dictionary

  • Benzene — Ben zene, n. [From {Benzoin}.] (Chem.) A volatile, very inflammable liquid, {C6H6}, contained in the naphtha produced by the destructive distillation of coal, from which it is separated by fractional distillation. The name is sometimes applied… …   The Collaborative International Dictionary of English

  • Benzene ring — Benzene Ben zene, n. [From {Benzoin}.] (Chem.) A volatile, very inflammable liquid, {C6H6}, contained in the naphtha produced by the destructive distillation of coal, from which it is separated by fractional distillation. The name is sometimes… …   The Collaborative International Dictionary of English

  • benzene ring — n. a structural unit in the molecules of aromatic organic compounds, represented by a ring of six atoms of carbon with alternate double bonds between the carbon atoms: in the molecule of benzene six atoms of hydrogen are attached to the ring, one …   English World dictionary

  • benzene ring — Chem. the graphic representation of the structure of benzene as a hexagon with a carbon atom at each of its points. Each carbon atom is united with an atom of hydrogen, one or more of which may be replaced to form benzene derivatives. Also called …   Universalium

  • benzene formula — noun a closed chain of 6 carbon atoms with hydrogen atoms attached • Syn: ↑benzene ring, ↑benzene nucleus, ↑Kekule formula • Hypernyms: ↑benzene, ↑benzine, ↑benzol …   Useful english dictionary

  • benzene ring — noun a closed chain of 6 carbon atoms with hydrogen atoms attached • Syn: ↑benzene formula, ↑benzene nucleus, ↑Kekule formula • Hypernyms: ↑benzene, ↑benzine, ↑benzol …   Useful english dictionary

  • benzene ring — /bɛnzin ˈrɪŋ/ (say benzeen ring) noun the graphic representation of the structure of benzene as a hexagon with a carbon atom at each of its points. Each carbon atom is linked to one atom of hydrogen, and the delocalised pi electron system is… …   Australian English dictionary

  • nucleus — [no͞o′klē əs, nyo͞o′klē əs] n. pl. nuclei [no͞o′klēī΄, nyo͞o′klēī΄] or nucleuses [ModL < L, a nut, kernel, for nuculeus, dim. < nux (gen. nucis), NUT] 1. a thing or part forming the center around which other things or parts are grouped or… …   English World dictionary

  • Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… …   Medical dictionary

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