thermionic valve


Origin of thermionic valve

First recorded in 1915–20

Words Nearby thermionic valve Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use thermionic valve in a sentence

  • I have even made an attempt to understand the mystery that is called the thermionic valve.

    The Tower of Oblivion | Oliver Onions

British Dictionary definitions for thermionic valve

thermionic valve

  1. an electronic valve in which electrons are emitted from a heated rather than a cold cathode

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