Meaning of relativistic

rel•a•tiv•is•tic

Pronunciation: (rel"u-tu-vis'tik), [key]
— adj.
  1. of or pertaining to relativity or relativism.
  2. radiation from relativistic electrons.
    1. subject to the special or the general theory of relativity.
    2. (of a velocity) having a magnitude that is a significant fraction of the speed of light.
    3. (of a particle) having a relativistic velocity:radiation from relativistic electrons.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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