olefiant gas
[oh-l
uh
-
fahy
-
uh
nt, oh-
lee
-fee-, oh-
lef
-ee-]
/ˌoʊ ləˈfaɪ ənt, oʊˈli fi-, oʊˈlɛf i-/
noun
1.
ethylene
(def 2).
Origin
1800-10;
part translation of
French
gaz oléfiant,
equivalent to
olé-
(<
Latin
oleum
oil
) +
-fiant,
present participle of
-fier
-fy
; see
-ant