[rel-uh-tuh-vis-tik] /ˌrɛl ə təˈvɪs tɪk/
of or relating to relativity or relativism.
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.
(physics) having or involving a speed close to that of light so that the behaviour is described by the theory of relativity rather than by Newtonian mechanics: a relativistic electron, a relativistic velocity
(physics) of, concerned with, or involving relativity
of or relating to relativism
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 […]
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.
noun 1. the state or fact of being relative. 2. Physics. a theory, formulated essentially by Albert Einstein, that all motion must be defined relative to a frame of reference and that space and time are relative, rather than absolute concepts: it consists of two principal parts. The theory dealing with uniform motion (special theory […]
verb (used with object), relativized, relativizing. 1. to regard as or make relative. verb 1. to make or become relative 2. (transitive) to apply the theory of relativity to