perineal

[per-uh-nee-uhm]

per·i·ne·um

[per-uh-nee-uhm]
noun, plural per·i·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; < Neo-Latin < Greek períneon, períneos, perínaios, apparently equivalent to per(i)- peri- + ine-, ina-, stems of ineîn, inân to evacuate, empty + -(i)os, -(i)on noun suffix

per·i·ne·al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Perineal is always a great word to know.
So is callithumpian. Does it mean:
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Collins
World English Dictionary
perineum (ˌpɛrɪˈniːəm)
 
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 peri- + inein to empty out]
 
peri'neal
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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