X-rays
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.
(12 Dec 1998)
Terms mentioned in text: electromagnetic radiation, inner, orbital, electrons, atom, release, energy, same, range, gamma rays, mev, nuclear, origin, wavelength, ultraviolet, less, hard
Previous terms: x-ray intensifying screens, x-ray, lateral, x-ray microanalysis, x-ray microscope, x-ray therapy, x-strabismus, xtp, x wave, xx male, xxx female, xxy