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oleaginous

[oh-lee-aj-uh-nuh s]
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adjective
  1. having the nature or qualities of oil.
  2. containing oil.
  3. producing oil.
  4. unctuous; fawning; smarmy.
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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

oleaginous

adjective
  1. resembling or having the properties of oil
  2. containing or producing oil
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Word Origin

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

adj.

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

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Online Etymology Dictionary, © 2010 Douglas Harper

oleaginous in Medicine

oleaginous

(ō′lē-ăjə-nəs)
adj.
  1. Oily; greasy.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.