a cathode ray tube, used for x-ray production, in which a beam of thermoelectrons is produced by heating a wire cathode.
choobRead more in this article about some frequently asked questions and fun facts related to our definitions.
The Origin And Grammar Of Father’s DayStrangely, the origin of Father's Day lies in two unrelated tragic events.
Origin of Coolidge tube
1910–15, Americanism; named after William D. Coolidge (1873–1975), U.S. physicist and chemist who devised it
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019