X-Rays - ț̢
Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excited and release energy - in the same energy range as gamma rays (0.010-10 Mev), but of non-nuclear origin, of shorter wavelength than ultraviolet; soft x-rays or Grenz rays are less penetrating and longer in wavelength than hard x-rays.
Synonyms : Radiation, X, X-Radiation, Xrays, Radiations, X, Rays, Grenz, Rays, Roentgen, X Radiation, X Radiations, X Rays, X-Radiations, X-Ray, Xray