|ōlē|ajənəs adjective
Etymology: Middle French oleagineux, from Latin oleaginus, oleagineus of an olive tree, of an olive, from olea olive tree, olive, from Greek elaia — more at olive
1. : resembling or having the properties of oil
oleaginous liquid
an oleaginous smear
: containing or producing oil : oily
oleaginous matter keeps his wavy black hair slick — Darrell Berrigan
the crop of winter oleaginous seeds — Kay Boyle
2. : characterized by suave urbanity or sickly sentimentality
oleaginous disc-plugging crooners — Bernard Hollowood