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 unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), -- hence called {olefiant gas}. Called also {ethene}, {elayl}, and formerly, {bicarbureted hydrogen}. [1913 Webster]

{Ethylene series} (Chem.), the series of unsaturated hydrocarbons of which ethylene is the type, and represented by the general formula {CnH2n}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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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 — 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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