Definition of oleous in US English:

oleous

adjective

  • Of the nature or consistency of oil; containing oil; oily.

Origin

Early 17th century; earliest use found in Philemon Holland (1552–1637), translator. From classical Latin oleōsus oily from oleum oil + -ōsus. Compare French oléeux, Italian oleoso, Catalan oliós, Spanish oleoso, Portuguese oleoso.

Pronunciation

oleous

/ˈəʊlɪəs/