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Coolidge tube

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WordReference Random House Unabridged Dictionary of American English © 2025

Cool′idge tube′, [Physics.]

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

named after William Dutch. Coolidge (1873–1975), U.south, southern. physicist and chemist who devised it 1910–15, American.

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