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Coolidge tube

American  

noun

Physics.

  1. a cathode ray tube, used for x-ray production, in which a beam of thermoelectrons is produced by heating a wire cathode.

Etymology

Origin of Coolidge tube

1910–15, named after William D. Coolidge (1873–1975), U.S. physicist and chemist who devised it

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.