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thermion
[ thurm-ahy-uhn, -on; thur-mee-uhn ]
/ ˈθɜrmˌaɪ ən, -ɒn; ˈθɜr mi ən /
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noun Physics.
an ion emitted by incandescent material.
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OTHER WORDS FROM thermion
therm·i·on·ic, adjectivetherm·i·on·i·cal·ly, adverbWords nearby thermion
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for thermion
thermion
/ (ˈθɜːmɪən) /
noun
physics an electron or ion emitted by a body at high temperature
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
Scientific definitions for thermion
thermion
[ thûr′mī′ən ]
An electrically charged particle or ion that is emitted by a heated conducting material. The electrons emitted from the cathodes of electron tubes (such as cathode ray tubes) are thermions.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.