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thermionic current

American  

noun

  1. an electric current produced by the flow of thermions.


thermionic current British  

noun

  1. 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

Etymology

Origin of thermionic current

First recorded in 1910–15