Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
ball hockey
ball joint
ball lightning
ball of fire
ball-pen
ball player
ball tearer
ball up
ball valve
ballad
ballad opera
ballade
balladeer
Ballarat
ballast
ballbreaker
ballbuster
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

ball valve
ball valve (plural ball valves)


noun 
Definition:
 
valve opened and closed by ball: a valve in which a ball moves in and out of a spherical socket in response to changes in fluid or mechanical pressure
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
© 2009 Microsoft