Acetylene Definition

ə-sĕtl-ēn, -ən
noun
A colorless, highly flammable or explosive gas, C2 H2 , used for metal welding and cutting and as an illuminant.
American Heritage
A colorless, poisonous, highly flammable gaseous hydrocarbon, HC⋮CH, produced by the reaction of water and calcium carbide: used in organic compound synthesis, for lighting, and with oxygen in welding: the simplest alkyne.
Webster's New World

(organic chemistry, countable) Any organic compound having one or more carbon–carbon triple bonds; an alkyne.

Wiktionary

(organic chemistry, uncountable) Ethyne; the simplest alkyne, a hydrocarbon of formula HC≡CH. It is a colourless gas, with a peculiar, unpleasant odour, formerly used as an illuminating gas, but now used in welding or metallurgy.

Wiktionary
Synonyms:

Other Word Forms of Acetylene

Noun

Singular:
acetylene
Plural:
acetylenes

Origin of Acetylene

  • From French acétylène, coined by French chemist Marcellin Berthelot, from acetyl.

    From Wiktionary

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acetylene