Definition of acetylene noun from the Oxford Advanced American Dictionary

 

acetylene

 noun
noun
NAmE//əˈsɛt̮lˌin//
 
, NAmE//‑ən//
 
(also ethyne)[uncountable](symbol C2H2)
 
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a gas that burns with a very hot, bright flame, used for cutting or joining metal compare oxyacetylene
See the Oxford Advanced Learner's Dictionary entry: acetylene