Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

perineum

play
noun, per·i·ne·um \ˌper-ə-ˈnē-əm\

Definition of perineum

plural -nea \-ˈnē-ə\

  1. :  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

perineal play \-ˈnē-əl\ adjective


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


First Known Use: 15th century


Medical Dictionary

perineum

noun per·i·ne·um

Medical Definition of perineum

plural perinea also perinaea \-ˈnē-ə\play

  1. :  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

also perinaeum \ˌper-ə-ˈnē-əm\play

Learn More about perineum


Seen and Heard

What made you want to look up perineum? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to expose to danger or risk

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ