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

butterfly valve

noun

Definition of butterfly valve

  1. 1 :  a valve consisting of two semicircular clappers hinged to a cross rib that permits fluid flow in only one direction

  2. 2 :  a damper or valve in a pipe consisting of a disk turning on a bisecting axis



1846

First Known Use of butterfly valve

1846


Learn More about butterfly valve


Seen and Heard

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

WORD OF THE DAY

in the capacity or character of

Get Word of the Day daily email!