資料來源 : Webster's Revised Unabridged Dictionary (1913)

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. [Archaic]