x-ray tube

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WordNet Dictionary

	Definition:	[n] a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays

	See Also:	electron tube, thermionic tube, thermionic vacuum tube, thermionic valve, tube, vacuum tube, X-ray machine

Webster's 1913 Dictionary

	Definition:	\X"-ray" tube\ (Physics) A vacuum tube suitable for producing R["o]ntgen rays.