definitions

ball valve

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noun Machinery.

a valve controlling flow by means of a ball pierced with an opening in one direction and fixed to rotate on a spindle at right angles to the opening.
any valve that checks flow by the seating of a ball.

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Nearby words

ball race, ball tearer, ball thrombus, ball turning, ball up, ball valve, ball's in your court, the, ball, george wildman, ball, john, ball, lucille, ball-and-claw foot

Origin of ball valve

First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ball valve

British Dictionary definitions for ball valve

ball valve

noun

a one-way valve consisting of a metal ball with a cylindrical hole fitting into a concave seat over an opening
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for ball valve

ball valve

n.

A valve regulated by the position of a free-floating ball that moves in response to fluid or mechanical pressure.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.