Perineum definition

pĕrə-nēəm
The region of the body between the thighs, at the outlet of the pelvis; specif., the small area between the anus and the vulva in the female or between the anus and the scrotum in the male.
noun
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The region between the scrotum and the anus in males, and between the posterior vulva junction and the anus in females.
noun
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The region between the scrotum and the anus in males, and between the posterior vulva junction and the anus in females.
noun
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The region between the scrotum and the anus in males, and between the posterior vulva and the anus in females.
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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.
noun
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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.
noun
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Other Word Forms

Noun

Singular:
perineum
Plural:
perinea

Origin of perineum

  • Middle English from Medieval Latin perinaeon from Greek perinaion peri- peri- inān to excrete

    From American Heritage Dictionary of the English Language, 5th Edition