• synonyms


  1. Chemistry. an ester or a salt of oleic acid.
  2. Pharmacology. a preparation, as an ointment, composed of medicated oleic acid.
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Origin of oleate

First recorded in 1825–35; ole(ic acid) + -ate2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for oleate

Historical Examples of oleate

  • From this date he used the oleate only once daily, and discontinued it entirely on the 14th.

    The Electric Bath

    George M. Schweig

  • Leave it for a day, when the oleate of soda will be dissolved.


    C. V. Boys

  • Another method of mordanting cotton is to fix the metallic salt on the fibre as a tannate instead of an oleate.

  • We may thus conceive how a small quantity of stearate or oleate of potash may resist the decomposing action of the soda salts.

  • Ointment of ammoniated mercury, twenty to sixty grains to the ounce; oleate of mercury, five to ten per cent.

    Essentials of Diseases of the Skin

    Henry Weightman Stelwagon

British Dictionary definitions for oleate


  1. any salt or ester of oleic acid, containing the ion C 17 H 33 COO or the group C 17 H 33 COO-: common components of natural fats
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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

oleate in Medicine


  1. A salt or ester of oleic acid.
  2. A pharmacopeial preparation consisting of a combination or solution of an alkaloid or metallic base in oleic acid.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.