olefiant gas

noun

ole·​fi·​ant gas

¦ōlə¦fīənt-;

ōˈlēf|ēənt-,

ōˈlef|

archaic

: ethylene

Word History

Etymology

partial translation of French gaz oléfiant, from gaz gas + oléfiant, from olé- ole- + -fiant, present participle of -fier -fy

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