|—n , pl -nea|
|1.||the region of the body between the anus and the genital organs, including some of the underlying structures|
|2.||the nearly diamond-shaped surface of the human trunk between the thighs|
|[C17: from New Latin, from Greek perinaion, from |
perineum per·i·ne·um (pěr'ə-nē'əm)
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.
|perineum (pěr'ə-nē'əm) Pronunciation Key
The region between the scrotum and the anus in males, and between the posterior vulva and the anus in females.