ethylene
noun Date: circa 1852 1. a colorless flammable gaseous unsaturated hydrocarbon C2H4 that is found in coal gas, can be produced by pyrolysis of petroleum hydrocarbons, and occurs in plants functioning especially as a natural growth regulator that promotes the ripening of fruit 2. a divalent hydrocarbon group C2H4 derived from ethane • ethylenic adjective

New Collegiate Dictionary. 2001.

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  • éthylène — [ etilɛn ] n. m. • 1867; de éthyle ♦ Chim. Gaz incolore d une faible odeur éthérée (C2H4), peu soluble dans l eau, premier membre de la série des hydrocarbures éthyléniques. ● éthylène nom masculin (de éthyle) Hydrocarbure CH2≅CH2, prototype des… …   Encyclopédie Universelle

  • Ethylene — Eth yl*ene ([e^]th [i^]l*[=e]n), n. [From {Ethyl}.] (Chem.) A colorless, gaseous hydrocarbon, {C2H4}, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an… …   The Collaborative International Dictionary of English

  • ethylene — UK US /ˈeθɪliːn/ noun [U] ► NATURAL RESOURCES a colourless gas with a slightly sweet smell that burns easily, used in industry: »ethylene gas/glycol »ethylene production …   Financial and business terms

  • ethylene — 1852, from ETHYL (Cf. ethyl) + ENE (Cf. ene), probably suggested by METHYLENE (Cf. methylene) …   Etymology dictionary

  • ethylene — ► NOUN Chemistry ▪ a flammable hydrocarbon gas of the alkene series, present in natural gas and coal gas …   English terms dictionary

  • ethylene — ☆ ethylene [eth′əl ēn΄ ] n. [ ETHYL + ENE] a colorless, flammable, gaseous alkene, H2C:CH2, obtained by the cracking of natural or coal gas, by the dehydration of alcohol, etc.: it is the simplest alkene and is used to synthesize organic… …   English World dictionary

  • ethylene — ethylenic /eth euh lee nik, len ik/, adj. /eth euh leen /, Chem. adj. 1. containing the ethylene group. n. 2. Also called ethene, olefiant gas. a colorless, flammable gas, C2H4, having a sweet, unpleasant odor and taste, the first member of the… …   Universalium

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