Source : Webster's Revised Unabridged Dictionary (1913)

OEnanthylic \[OE]`nan*thyl"ic\, a. (Chem.)
   Pertaining to, derived from, or containing, [oe]nanthyl;
   specifically, designating an acid formerly supposed to be
   identical with the acid in [oe]nanthic ether, but now known
   to be identical with heptoic acid.