perineum [ per- uh- nee- uh m ] SHOW IPA / ˌpɛr əˈni əm / PHONETIC RESPELLING EXAMPLES | WORD ORIGIN noun, plural per·i·ne·a . [per- uh- nee- uh] /ˌpɛr əˈni ə/ . Anatomy the area in front of the anus extending to the fourchette of the vulva in the female and to the scrotum in the male. the diamond-shaped area corresponding to the outlet of the pelvis, containing the anus and vulva or the roots of the penis. Nearby words perineostomy
period Origin of perineum 1625–35;
Greek períneon, períneos, perínaios,
apparently equivalent to
to evacuate, empty + -(
Related forms per·i·ne·al, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for perineum British Dictionary definitions for perineum noun plural -nea ( -ˈniːə) the region of the body between the anus and the genital organs, including some of the underlying structures the nearly diamond-shaped surface of the human trunk between the thighs Derived Forms perineal, adjective Word Origin for perineum
C17: from New Latin, from Greek
perinaion, from peri- + inein to empty out
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for perineum n.
"region of the body between the anus and the genital organs" (jocularly called a
taint), early 15c., from Medieval Latin perinaeon, Late Latin perineum, from Greek perinaion, perinaios, from peri- "near" (see peri-) + inan "to carry off by evacuation," of unknown origin.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for perineum n. pl. per•i•ne•a ( -nē) ′ə 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. The region between the scrotum and the anus in males, and between the posterior vulva junction and the anus in females. Related forms 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.
Science definitions for perineum 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.