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[smeg-muh] /ˈsmɛg mə/
a thick, cheeselike, sebaceous secretion that collects beneath the foreskin or around the clitoris.
Origin of smegma
1810-20; < Latin < Greek smêgma unguent, soap, cleansing medicine Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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British Dictionary definitions for smegma


(physiol) a whitish sebaceous secretion that accumulates beneath the prepuce
Word Origin
C19: via Latin from Greek smēgma detergent, from smekhein to wash
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
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Word Origin and History for smegma

sebaceous secretion, 1819, from Latin, from Greek smegma "a detergent, soap, unguent," from smekhein "to wipe off, wipe clean, cleanse," from PIE root *sme- "to smear" (cf. Czech smetana "cream," and cf. smear (v.)). So called from resemblance; a medical coinage, the word seems not to have been used in its literal Greek sense in English before this. Related: Smegmatic.

Online Etymology Dictionary, © 2010 Douglas Harper
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smegma in Medicine

smegma smeg·ma (směg'mə)
A sebaceous secretion, especially the whitish cheesy secretion that collects under the prepuce of the penis or around the clitoris.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Slang definitions & phrases for smegma

smear 1


: They never stoop to smear tactics


: His whole campaign was a vile smear of the other party's man • The current term is ''negative campaigning'' (1943+)


  1. To knock unconscious; kayo (1920+ Prizefighting)
  2. To defeat decisively; trounce; clobber, skunk: The Rangers got smeared 12–zip (1900+)
  3. To attack someone's reputation, esp with false or vague charges of the ad hominem sort; defame: His technique was always to smear his opponent and avoid talking about issues of substance (1847+)

[revived in the 1930s in the political context]

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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