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
Derived forms
perineal (ˌperiˈneal)
adjective
Word origin
C17: from New Latin, from Greek perinaion, from peri- + inein to empty out
perineum in American English
(ˌpɛrəˈniəm)
nounWord forms: pluralˌperiˈnea (ˌpɛrəˈniə)
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
Derived forms
perineal (ˌperiˈneal)
adjective
Word origin
ModL < LL perinaeon < Gr perineon < peri-, around + inein, to discharge, defecate