<p><strong>Adjective</strong></p><ul><li>of or relating to relativity or relativism.</li><li>subject to the special or the general theory of relativity.</li><li>(of a velocity) having a magnitude that is a significant fraction of the speed of light.</li><li>(of a particle) having a relativistic velocity: radiation from relativistic electrons.</li></ul><p><strong>End of Response</strong></p>