an electric current produced by the flow of thermions.
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- thermic fever,
- thermionic emission,
- thermionic tube,
- thermionic valve,
Origin of thermionic current
First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an electric current produced between two electrodes as a result of electrons emitted by thermionic emission
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012