• synonyms


adjective, horn·i·er, horn·i·est.
  1. consisting of a horn or a hornlike substance; corneous.
  2. having a horn or horns or hornlike projections; horned.
  3. hornlike as a result of hardening; callous: horny hands.
  4. Slang: Vulgar.
    1. lustful.
    2. sexually excited.
  5. Archaic. semiopaque or somewhat translucent, like horn.
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Origin of horny

Middle English word dating back to 1350–1400; see origin at horn, -y1
Related formshorn·i·ly, adverbhorn·i·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for horniness


adjective hornier or horniest
  1. of, like, or hard as horn
  2. having a horn or horns
  3. slang
    1. sexually aroused
    2. provoking or intended to provoke sexual arousal
    3. sexually eager or lustful
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Derived Formshornily, adverbhorniness, noun
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 horniness



"lustful, sexually aroused," definitely in use 1889, perhaps attested as early as 1863; from late 18c. slang expression to have the horn, suggestive of male sexual excitement (but eventually applied to women as well); see horn (n.).

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Online Etymology Dictionary, © 2010 Douglas Harper

horniness in Medicine


  1. Made of horn or a similar substance.
  2. Tough and calloused, as of skin.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.