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horny

[hawr-nee]
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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.

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

horny

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
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

horny

adj.

"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.).

Online Etymology Dictionary, © 2010 Douglas Harper

horniness in Medicine

horny

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