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Definition of perineal - 4 dictionary results

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.

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


per⋅i⋅ne⋅al, adjective
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.

Perineal

Per`i*ne"al\, a. (Anat.) Of or pertaining to the perineum.

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