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Definition of oleaginousness in English:

oleaginousness

Pronunciation /ˌəʊlɪˈadʒɪnəsnəs/

noun

  • 1Oiliness, greasiness.

  • 2Obsequiousness.

Origin

Late 17th century; earliest use found in Robert Boyle (1627–1691), natural philosopher. From oleaginous + -ness.