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perineal

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per⋅i⋅ne⋅um

  [per-uh-nee-uhm]
–noun, plural -ne⋅a  [-nee-uh] . Anatomy.
1. the area in front of the anus extending to the fourchette of the vulva in the female and to the scrotum in the male.
2. the diamond-shaped area corresponding to the outlet of the pelvis, containing the anus and vulva or the roots of the penis.
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Origin:
1625–35; < NL < Gk períneon, períneos, perínaios, appar. equiv. to per(i)- peri- + ine-, ina-, stems of ineîn, inân to evacuate, empty + -(i)os, -(i)on n. suffix

Related forms:
per⋅i⋅ne⋅al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
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per·i·ne·um   (pěr'ə-nē'əm)   
n.   pl. per·i·ne·a (-nē'ə)

  1. The portion of the body in the pelvis occupied by urogenital passages and the rectum, bounded in front by the pubic arch, in the back by the coccyx, and laterally by part of the hipbone.

  2. The region between the scrotum and the anus in males, and between the posterior vulva junction and the anus in females.


[Middle English, from Medieval Latin perinaeon, from Greek perinaion : peri-, peri- + inān, to excrete.]
per'i·ne'al (-nē'əl) adj.
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

perineum 
"region of the body between the anus and the genital organs," 1632, from M.L. perinaeon, L.L. perineum (c.440), from Gk. perinaion, perinaios, from peri- "near" + inan "to carry off by evacuation," of unknown origin.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: per·i·ne·al
Pronunciation: "per-&-'nE-&l
Function: adjective
: of or relating to the perineum

Main Entry: per·i·ne·um
Variant: also per·i·nae·um /"per-&-'nE-&m/
Function: noun
Inflected Form: plural per·i·nea also per·i·naea /-'nE-&/
: an area of tissue that marks externally the approximate boundary ofthe pelvic outlet and gives passage to the urogenital ducts and rectum; also : the area between the anus and the posterior part of the external genitalia especially in the female
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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perineum per·i·ne·um (pěr'ə-nē'əm)
n. pl. per·i·ne·a (-nē'ə)

  1. The portion of the body in the pelvis occupied by urogenital passages and the rectum, bounded in front by the pubic arch, in the back by the coccyx, and laterally by part of the hipbone.

  2. The region between the scrotum and the anus in males, and between the posterior vulva junction and the anus in females.

per'i·ne'al (-nē'əl) adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
perineum   (pěr'ə-nē'əm)  Pronunciation Key 
Plural perinea
The region between the scrotum and the anus in males, and between the posterior vulva and the anus in females.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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