ethylene

American  

[eth-uh-leen] / ˈɛθ əˌlin /

adjective

1. containing the ethylene group.

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noun

1. Also called ethene, olefiant gas.  a colorless, flammable gas, C 2 H 4 , having a sweet, unpleasant odor and taste, the first member of the ethylene series, usually obtained from petroleum and natural gas: used as an agent to improve the color of citrus fruits, in the synthesis of polyethylene, ethylene dibromide, ethylene oxide, and other organic compounds, and in medicine chiefly as an inhalation anesthetic.

ethylene British  

/ ˈɛθɪˌliːn, ˌɛθɪˈliːnɪk /

noun

1. Also called: ethene.  a colourless flammable gaseous alkene with a sweet odour, obtained from petroleum and natural gas and used in the manufacture of polythene and many other chemicals. Formula: CH 2 :CH 2

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ethylene Scientific  

/ ĕth′ə-lēn′ /

1. A colorless, flammable gas that occurs naturally in certain plants and can be obtained from petroleum and natural gas. As a plant hormone, it ripens and colors fruit, and it is manufactured for use in agriculture to speed these processes. It is also used as a fuel and in making plastics. Ethylene is the simplest alkene, consisting of two carbon atoms joined by a double bond and each attached to two hydrogen atoms. Also called ethene. Chemical formula: C ₂ H ₄ .

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Other Word Forms

• ethylenic
  adjective

Etymology

Origin of ethylene

First recorded in 1850–55; ethyl + -ene

Example Sentences

See Examples For:

ethylene

Bank, Allegiant—use something called ETFE, ethylene tetrafluoroethylene, a lightweight plastic membrane stretched across steel cables.

From The Wall Street Journal ● Jul. 8, 2026

Companies that use or manufacture ethylene oxide and their representatives complained to the EPA and questioned the science that cost them so dearly.

From Salon ● May 5, 2026

Derivatives from petrochemicals - such as methanol and ethylene - are vital materials in the global production of pharmaceuticals, including painkillers, antibiotics and vaccines.

From BBC ● Mar. 26, 2026

Mitsui Chemicals, another leading Japanese chemicals firm, started cutting ethylene output at two plants last week because of concerns over naphtha supply, a company spokesperson told AFP.

From Barron's ● Mar. 18, 2026

Thus, suppose that chlorine is added to ethylene.

From Scientific American Supplement, No. 633, February 18, 1888 by Various