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groin

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groin

[groin]
–noun
1. Anatomy. the fold or hollow on either side of the front of the body where the thigh joins the abdomen.
2. the general region of this fold or hollow.
3. Architecture. the curved line or edge formed by the intersection of two vaults.
4. Also, groyne. a small jetty extending from a shore to prevent beach erosion.
–verb (used with object)
5. Architecture. to form with groins.

Origin:
1350–1400; earlier grine, ME grinde; cf. OE grynde abyss, akin to grund bottom, ground 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
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Hernia
Surgery fair price. Only Uninsured. End the worry. Contact us today.
NoInsuranceSurgery.com/Hernia
Diagnose Me
Tell us your symptoms in detail. Let us give you the full picture.
www.Diagnose-Me.com
groin   (groin)   
n.  
  1. Anatomy The crease or hollow at the junction of the inner part of each thigh with the trunk, together with the adjacent region and often including the external genitals.

  2. Architecture The curved edge at the junction of two intersecting vaults.

  3. A small jetty extending from a shore to protect a beach against erosion or to trap shifting sands.

tr.v.   groined, groin·ing, groins
To provide or build with groins.

[Alteration (influenced by loin) of Middle English grinde, perhaps from Old English grynde, abyss, hollow.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

groin 
1592, from M.E. grynde "groin" (c.1400), originally "depression in the ground," from O.E. grynde "abyss," perhaps also "depression, hollow," from P.Gmc. *grundus (see ground). Altered 16c. by influence of loin. The architectural groin "edge formed by the intersection of two vaults" is from 1725.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: groin
Pronunciation: 'groin
Function: noun
: the fold or depression marking the juncture of the lower abdomen and the inner part of the thigh;also : the region of this line
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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groin (groin)
n.
The crease or hollow at the junction of the inner part of each thigh with the trunk, together with the adjacent region and often including the external genitals.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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