Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
balkline billiards
balky
ball (1)
ball (2)
ball and chain
ball-and-claw
ball and socket joint
ball bearing
ball boy
ball carrier
ball clay
ball cock
ball field
ball game
ball girl
ball gown
ball hockey
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