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vacuum distillation
vacuum drying
vacuum flask
vacuum forming
vacuum gauge
vacuum-packed
vacuum pan
vacuum pump
vacuum tube
vada
vade mecum
Vadodara
vadose
vadose zone
Vaduz
vag-
vagabond
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vacuum tube
vac·u·um tube (plural vac·u·um tubes)


noun 
Definition:
 
electron tube producing amplification: an electron tube that is either evacuated or filled with low-pressure gas and in which electrons are pulled from the cathode by an applied anode voltage
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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