Definition of olefin
o´le`fin
Pronunciation:
ō´lė`fĭn
or
ō´lė`fēn
n.
1.
(Chem.)
Olefiant
gas
,
or
ethylene
.
See
Ethylene
.
2.
(Chem.)
Any
one
of
the
series
of
unsaturated
hydrocarbons
of
which
ethylene
is
the
type
;
a
member
of
the
alkene
series
of
hydrocarbons
;
an
alkene
.
Related Words
aliphatic
compound
,
alkene
,
ethene
,
ethylene
,
olefine
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