x-ray medical definition

or X-ray

1. A relatively high-energy photon with wavelength in the approximate range from 0.01 to 10 nanometers. Also called roentgen ray.
2. A stream of such photons used for their penetrating power in radiography, radiology, radiotherapy, and scientific research. Often used in the plural. Also called roentgen ray.
3. A photograph taken with x-rays.

1. To irradiate with x-rays.
2. To photograph with x-rays.