| 释义 | olefin
 o·le·finO0062800 (ō′lə-fĭn)n.1.  Any of a class of unsaturated open-chain hydrocarbons having at least one double bond.2.  A fiber or fabric made of this material.[French (gaz) oléfiant, oil-forming (gas), ethylene : Latin oleum, oil; see  oil + French -fiant, present participle of -fier, -fy.]
 o′le·fin′ic adj.
 al•kene(ˈæl kin)
 n.   any member of the homologous series of unsaturated, aliphatic hydrocarbons having at least one double bond and the general formula CnH2n, as ethlyene. Also called  olefin .  [1895–1900]
 o·le·fin(ō′lə-fĭn) See  alkene.Thesaurus| Noun | 1. | olefin - any unsaturated aliphatic hydrocarbonalkene, olefinealiphatic compound - organic compound that is an alkane or alkene or alkyne or their derivativeethene, ethylene - a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic | 
 
 olefin
 olefin(ō`ləfĭn) orolefin series:see alkenealkene, any of a group of aliphatic hydrocarbons whose molecules contain one or more carbon-carbon double bonds (see chemical bond). Alkenes with only one double bond have the general formula CnH2n.
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 olefin[′ō·lə·fən]  (organic chemistry) Cn H2 n A family of unsaturated, chemically active hydrocarbons with one carbon-carbon double bond; includes ethylene and propylene.   (textiles) A manufactured fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 85% by weight of ethylene, propylene, or other olefin units except amorphous (noncrystalline) polyolefins qualifying as rubber.olefinA lightweight, high-strength, long-chain polymeric material having very good abrasion resistance; especially used in indoor-outdoor carpeting.olefin
 al·kene(al'kēn), An acyclic hydrocarbon containing one or more carbon-carbon double bonds; for example, ethene, propene. Synonym(s): olefinal·kene (al'kēn) An acyclic hydrocarbon containing one or more double bonds; e.g., ethene, propene.Synonym(s): olefin.
 olefinRelated to olefin: paraffin, Alpha olefin
 Synonyms for olefinnoun any unsaturated aliphatic hydrocarbonSynonymsRelated Wordsaliphatic compoundetheneethylene
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