olefiant gas
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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  • olefiant gas — |ōlə|fīənt ; ōˈlēf]ēənt , ōˈlef] noun Etymology: part translation of French gaz oléfiant, from gaz gas + oléfiant, from olé ole + fiant, present participle of fier fy archaic : ethylene * * * /oh leuh fuy euhnt, oh lee fee , oh lef ee / ethylene… …   Useful english dictionary

  • olefiant gas — /oh leuh fuy euhnt, oh lee fee , oh lef ee / ethylene (def. 2). [1800 10; part trans. of F gaz oléfiant, equiv. to olé ( < L oleum OIL) + fiant, prp. of fier FY; see ANT] * * * …   Universalium

  • Olefiant — O*le fi*ant, a. [F. ol[ e]fiant, fr.L. oleum oil + ficare (in comp.). Cf. { Fy}.] (Chem.) Forming or producing an oil; specifically, designating a colorless gaseous hydrocarbon called ethylene (olefiant gas). [Archaic] [1913 Webster] …   The Collaborative International Dictionary of English

  • olefiant — /ō li fīˈənt or ō lēˈfi ənt/ adjective Oil forming (as in olefiant gas ethylene) • • • Main Entry: ↑oleate …   Useful english dictionary

  • Gas — (g[a^]s), n.; pl. {Gases} (g[a^]s [e^]z). [Invented by the chemist Van Helmont of Brussels, who died in 1644.] 1. An a[ e]riform fluid; a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be… …   The Collaborative International Dictionary of English

  • Gas battery — Gas Gas (g[a^]s), n.; pl. {Gases} (g[a^]s [e^]z). [Invented by the chemist Van Helmont of Brussels, who died in 1644.] 1. An a[ e]riform fluid; a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be …   The Collaborative International Dictionary of English

  • Gas carbon — Gas Gas (g[a^]s), n.; pl. {Gases} (g[a^]s [e^]z). [Invented by the chemist Van Helmont of Brussels, who died in 1644.] 1. An a[ e]riform fluid; a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be …   The Collaborative International Dictionary of English

  • Gas coal — Gas Gas (g[a^]s), n.; pl. {Gases} (g[a^]s [e^]z). [Invented by the chemist Van Helmont of Brussels, who died in 1644.] 1. An a[ e]riform fluid; a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be …   The Collaborative International Dictionary of English

  • Gas coke — Gas Gas (g[a^]s), n.; pl. {Gases} (g[a^]s [e^]z). [Invented by the chemist Van Helmont of Brussels, who died in 1644.] 1. An a[ e]riform fluid; a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be …   The Collaborative International Dictionary of English

  • Gas engine — Gas Gas (g[a^]s), n.; pl. {Gases} (g[a^]s [e^]z). [Invented by the chemist Van Helmont of Brussels, who died in 1644.] 1. An a[ e]riform fluid; a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be …   The Collaborative International Dictionary of English

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