cathode ray tube

From Wiktionary

Noun[change]

Singular
cathode ray tube

Plural
cathode ray tubes

  1. (countable) A cathode ray tube is a vacuum tube that displays images by controlling the direction of a cathode ray emitted towards the front of the tube.
Retrieved from "https://simple.wiktionary.org/w/index.php?title=cathode_ray_tube&oldid=520603"