GRENZ RAYS
\ɡɹˈɛnts ɹˈe͡ɪz], \ɡɹˈɛnts ɹˈeɪz], \ɡ_ɹ_ˈɛ_n_t_s ɹ_ˈeɪ_z]\
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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.
By DataStellar Co., Ltd
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.