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See more synonyms for udder on Thesaurus.com
  1. a mamma or mammary gland, especially when baggy and with more than one teat, as in cows.
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Origin of udder

before 1000; Middle English uddre, Old English ūder; cognate with German Euter, Latin ūber, Greek oûthar, Sanskrit ū́dhar
Can be confusedudder utter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for udder

chest, bosom, nipple, front, bust, udder, mammilla, teat

Examples from the Web for udder

Historical Examples of udder

British Dictionary definitions for udder


  1. the large baglike mammary gland of cows, sheep, etc, having two or more teats
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Word Origin for udder

Old English ūder; related to Old High German ūtar, Old Norse jūr, Latin ūber, Sanskrit ūdhar
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 udder


Old English udder "milk gland of a cow, goat, etc.," from Proto-Germanic *udr- (cf. Old Frisian and Middle Dutch uder, Old High German utar, German Euter, and, with unexplained change of consonant, Old Norse jugr), from PIE *udhr- (cf. Sanskrit udhar, Greek outhar, Latin uber "udder").

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Online Etymology Dictionary, © 2010 Douglas Harper

udder in Science


  1. A bag-shaped part of a cow and the females of other ruminants in which milk is formed and stored and from which it is taken in suckling or milking.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.