# Relativist

**noun**

1.

an adherent or advocate of relativism or of the principle of relativity.

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[rel-uh-tuh-vis-tik] /ˌrɛl ə təˈvɪs tɪk/ adjective 1. of or relating to relativity or relativism. 2. Physics. subject to the special or the general theory of relativity. (of a velocity) having a magnitude that is a significant fraction of the speed of light. (of a particle) having a relativistic velocity: radiation from relativistic electrons. relativistic /ˌrɛlətɪˈvɪstɪk/ […]

- Relativistically
[rel-uh-tuh-vis-tik] /ˌrɛl ə təˈvɪs tɪk/ adjective 1. of or relating to relativity or relativism. 2. Physics. subject to the special or the general theory of relativity. (of a velocity) having a magnitude that is a significant fraction of the speed of light. (of a particle) having a relativistic velocity: radiation from relativistic electrons. relativistic /ˌrɛlətɪˈvɪstɪk/ […]

- Relativistic-mass
noun, Physics. 1. the mass of a body in motion relative to the observer: it is equal to the rest mass multiplied by a factor that is greater than 1 and that increases as the magnitude of the velocity increases. relativistic mass (rěl’ə-tə-vĭs’tĭk) In Special and General Relativity, the observed mass of an object moving […]

- Relativistic-quantum-mechanics
noun, Physics. 1. quantum mechanics based on a wave equation satisfying the mathematical requirements of the special theory of relativity and applying to particles of any velocity.