Olefiant

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Olefiant \O*le"fi*ant\, a. [F. ol['e]fiant, fr.L. oleum oil +
     -ficare (in comp.). Cf. {-Fy}.] (Chem.)
     Forming or producing an oil; specifically, designating a
     colorless gaseous hydrocarbon called ethylene (olefiant gas).
     [Archaic]
     [1913 Webster] olefin