Definition of acetylene in English:

acetylene

Syllabification: a·cet·y·lene
Pronunciation: /əˈsetlən, -ˌēn
 
/

noun

Chemistry
  • A colorless pungent-smelling hydrocarbon gas, which burns with a bright flame, used in welding and formerly in lighting.
    • Alternative name: ethyne; chemical formula: C2H2
    More example sentences
    • Observers have long known that Titan's atmosphere contains methane, ethane, acetylene and many other hydrocarbon compounds.
    • A delicate 24-hour cooling operation saw roads and houses cordoned off as the emergency services tried to prevent the acetylene, propane and oxygen cylinders from exploding in Thornton Heath.
    • Acrylonitrile is another product of acetylene, formed in a reaction with hydrogen cyanide.

Origin

mid 19th century: from acetic + -yl + -ene.

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