Medical Term:

x-ray

Pronunciation: eks′rā

Definition:

  1. The ionizing electromagnetic radiation emitted from a highly evacuated tube, resulting from the excitation of the inner orbital electrons by the bombardment of the target anode with a stream of electrons from a heated cathode.
  2. Ionizing electromagnetic radiation produced by the excitation of the inner orbital electrons of an atom by other processes, such as nuclear delay and its sequelae.

Synonym(s): radiograph

Synonym(s): roentgen ray

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