cathode ray Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a stream of electrons emitted by a cathode in a vacuum tube. Example Sentence This TV uses a cathode ray tube. Spelled as two words. More Example Sentences The cathode ray is used in old TVs. Synonyms electron beam; ray; beam Antonyms neutron Hear It! Say It! Write It! cathode ray Switch to cursive Start Share with your friends:
