perineum

perineum definition - medical

per·i·ne·um (pĕrˌə-nēˈəm)

noun pl. per·i·ne·a (-nēˈə)
  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.

Related Forms:

  • perˌi·neˈal (-nēˈəl) adjective

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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