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cold cathode
cold cath·ode (plural cold cath·odes)


noun 
Definition:
 
cathode producing electrons by high voltage: a cathode in an electron tube from which electron emission is produced at normal temperatures by a high voltage gradient
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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