First Known Use: 15th century
Dictionary
perineum
noun per·i·ne·um \ˌper-ə-ˈnē-əm\
plural -nea \-ˈnē-ə\
Definition of PERINEUM
: an area of tissue that marks externally the approximate boundary of the outlet of the pelvis and gives passage to the urinogenital ducts and rectum; also : the area between the anus and the posterior part of the external genitalia
— per·i·ne·al \-ˈnē-əl\ adjective
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Origin of PERINEUM
Middle English, from Late Latin perinaion, from Greek, from peri- + inan to empty out; perhaps akin to Sanskrit iṣṇāti he sets in motion
Medical Dictionary
perineum
noun per·i·ne·um
plural -nea also per·i·naea \-ˈnē-ə\
Medical Definition of PERINEUM
: an area of tissue that marks externally the approximate boundary of the pelvic outlet and gives passage to the urogenital ducts and rectum; also : the area between the anus and the posterior part of the external genitalia especially in the female
Variants of PERINEUM
per·i·ne·um also per·i·nae·um \ˌper-ə-ˈnē-əm\
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