[ oh-lee-aj-uh-nuh s ]
/ ˌoʊ liˈædʒ ə nəs /


having the nature or qualities of oil.
containing oil.
producing oil.
unctuous; fawning; smarmy.

Nearby words

  1. oldy,
  2. ole,
  3. ole-,
  4. olea,
  5. oleaceous,
  6. olean,
  7. oleander,
  8. olearia,
  9. oleaster,
  10. oleate

Origin of oleaginous

1625–35; < Latin oleāginus of the olive, derivative of olea olive

Related formso·le·ag·i·nous·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for oleaginous

British Dictionary definitions for oleaginous


/ (ˌəʊlɪˈædʒɪnəs) /


resembling or having the properties of oil
containing or producing oil

Word Origin for oleaginous

C17: from Latin oleāginus, from olea olive; see also oil

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for oleaginous



1630s, from French oléagineux (14c.), from Latin oleaginus "of the olive," from olea "olive," alteration of oliva (see olive) by influence of oleum "oil."

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for oleaginous


[ ō′lē-ăjə-nəs ]


Oily; greasy.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.