thermionic - WordReference.com Dictionary of English

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thermionic

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Concise Oxford English Dictionary © 2008 Oxford University Press:
thermionic/θəːmɪˈɒnɪk/

▶adjective relating to or denoting the emission of electrons from substances heated to very high temperatures.

– derivatives
thermionics plural noun.

'thermionic' also found in these Oxford entries:

diode - grid - grid bias - pentode - plate - tetrode - thermionic valve - thyristor - triode - -tron - tube

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