Definition of oleiferous in English:

oleiferous

Pronunciation /ˌōlēˈifərəs/ /ˌoʊliˈɪfərəs/

adjective

Botany
  • (of seeds, glands, etc.) producing oil.

    • ‘The unagi was especially rich and oleiferous, but then it always is.’

Origin

Early 19th century from Latin oleum ‘oil’+ -ferous.