electron tube

noun

Definition of electron tube

: an electronic device in which conduction by electrons takes place through a vacuum or a gaseous medium within a sealed glass or metal container and which has various uses based on the controlled flow of electrons

See electron tube defined for kids

First Known Use of electron tube

1919

in the meaning defined above

See Words from the same year

NEW! Time Traveler

ELECTRON TUBE Defined for Kids

electron tube

noun

Definition of electron tube for Students

: a device in which conduction of electricity by electrons takes place through a vacuum or a gas within a sealed container and which has various uses (as in radio and television)

Learn More about electron tube

Britannica.com: Encyclopedia article about electron tube

Seen and Heard

What made you want to look up electron tube? Please tell us where you read or heard it (including the quote, if possible).

show

WORD OF THE DAY

cerulean

play

resembling the blue of the sky

BROWSE DICTIONARY

electron telescope

electron transport

electron tube

electron volt

electrooculogram

Test Your Vocabulary

Difficult Spelling Words Quiz

Which is the correct spelling?

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Words at Play

Ask the Editors

Word Games