This shows grade level based on the word's complexity.
thermionic tube
Save This Word!
This shows grade level based on the word's complexity.
noun Electronics.
a vacuum tube in which the cathode is heated electrically to cause the emission of electrons by thermal agitation.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I canāt figure out _____ gave me this gift.
Also called hot-cathode tube.
Origin of thermionic tube
First recorded in 1925ā30
Words nearby thermionic tube
thermion, thermionic, thermionic current, thermionic emission, thermionics, thermionic tube, thermionic valve, thermistor, Thermit, thermite, thermite process
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, Ā© Random House, Inc. 2023
How to use thermionic tube in a sentence
Scientific definitions for thermionic tube
thermionic tube
[ thĆ»rā²mÄ«-Ånā²Äk ]
An electrical component, typically an electron tube, through which electric current flows via the emission of thermions from a heated cathode.
The American HeritageĀ® Science Dictionary
Copyright Ā© 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.