olefin
Pronunciation: /ˈəʊlɪfɪn/
(also olefine)
Definition of olefin
noun
Chemistry- another term for alkene.
Origin:
mid 19th century: from French oléfiant 'oil-forming' (with reference to oily ethylene dichloride)
mid 19th century: from French oléfiant 'oil-forming' (with reference to oily ethylene dichloride)