[oh-lee-aj-uh-nuh s]
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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. 2018

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British Dictionary definitions for oleaginous


  1. resembling or having the properties of oil
  2. 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

oleaginous in Medicine


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