pyloric sphincter

noun

Medical Definition of pyloric sphincter

: the circular fold of mucous membrane containing a ring of circularly disposed muscle fibers that closes the vertebrate pylorus

— called also pyloric valve

Comments on pyloric sphincter

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

WORD OF THE DAY

ethereal

of or relating to the heavens

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

Which is a synonym of desideratum?

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ

SCRABBLE® Sprint

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

TAKE THE QUIZ