Dictionary

X-ray tube

X–ray tube

noun

Definition of X-RAY TUBE

:  a vacuum tube in which a concentrated stream of electrons strikes a metal target and produces X-rays

First Known Use of X-RAY TUBE

1896

X–ray tube

noun    (Medical Dictionary)

Medical Definition of X–RAY TUBE

:  a vacuum tube in which a concentrated stream of electrons from a cathode strikes a metal target and produces X-rays from the side of the tube at right angles in a quantity and intensity that is controlled by the cathode temperature and with a wavelength and hardness that depends upon the voltage applied to the tube terminals

Browse

Next Word in the Dictionary: XSPrevious Word in the Dictionary: X–ray therapyAll Words Near: X-ray tube
February 27, 2015
rationale Hear it
An explanation or underlying reason
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears