acetylene /əˈsɛtɪliːn/

a

I. noun


[Chemistry] a colourless pungent-smelling hydrocarbon gas, which burns with a bright flame, used in welding and formerly in lighting.

●Alternative name: ethyne; chem. formula: C2H2.
– origin mid 19th cent.: from acetic acid + -yl + -ene.

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