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thermoelectron

[thur-moh-i-lek-tron]
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noun Physics.
  1. an electron emitted by an incandescent material.
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Origin of thermoelectron

First recorded in 1925–30; thermo- + electron
Related formsther·mo·e·lec·tron·ic [thur-moh-i-lek-tron-ik, -ee-lek-] /ˌθɜr moʊ ɪ lɛkˈtrɒn ɪk, -ˌi lɛk-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for thermoelectron

thermoelectron

noun
  1. an electron emitted at high temperature, such as one produced in a thermionic valve
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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