from The American Heritage® Dictionary of the English Language, 4th Edition
- n. 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.
- n. The region between the scrotum and the anus in males, and between the posterior vulva junction and the anus in females.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Region between the genital area and the anus in both sexes.
from the GNU version of the Collaborative International Dictionary of English
- n. The region which is included within the outlet of the pelvis, and is traversed by the urinogenital canal and the rectum.
from The Century Dictionary and Cyclopedia
- n. The region of the body between the thighs, extending from the anus to the fourchette in the female, or to the scrotum in the male.
- n. The region included by the outlet of the pelvis, extending from the apex of the subpubic arch in front to the tip of the coccyx behind, and bounded laterally by the conjoined pubic and ischiatic rami, the tuberosities of the ischia, and the great sacrosciatic ligaments.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the general region between the anus and the genital organs
Middle English, from Medieval Latin perinaeon, from Greek perinaion : peri-, peri- + inān, to excrete.(American Heritage® Dictionary of the English Language, Fourth Edition)
From post‐Classical Latin perineum (Classical Latin: perinaeon), from Ancient Greek περίναιον (perínaion) or περίνεος (períneos), from περί ("peri-") with ἰνέω ("I empty, evacuate"). (Wiktionary)