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The Collaborative International Dictionary
Relativistic

Relativistic \Rel`a*tiv*ist"ic\, a.

  1. of, pertaining to, or in conformity with the theory of relativity; as, the relativistic increase of mass with velocity.

  2. moving at a speed sufficiently high that the changes of mass or time dilation predicted by the theory of relativity may be observed; moving at a significant fraction of the speed of light; as, relativistic electrons.br/ [PJC]

Wiktionary
relativistic

a. 1 (context physics English) of, or relating to relativity 2 (context physics English) at, or near the speed of light 3 (context philosophy English) of, or relating to relativism

WordNet
relativistic
  1. adj. relating or subject to the special or the general theory of relativity; "relativistic quantum mechanics"; "relativistic increase in mass"; "radiation from relativistic particles"

  2. of or relating to the philosophical doctrine of relativism

Wikipedia

Usage examples of "relativistic".

It would accelerate to relativistic velocities between Magaria and Zanshaa, then broadcast its coded contents to the capital.

Naxid missiles, Martinez realized, accelerated to relativistic velocities outside the system, then fired through the wormhole along the route they knew Chenforce had to take.

For some unguessable time it was nowhere and nowhen in terms of conventional, relativistic space.

Using terabytes of qubit quantum data and applying relativistic Coulomb field transforms to these mind-consciousness holographic wavefunctions, it was quickly discovered that human consciousness could be quantum-teleported to points in space-time where entangled-pair wavefronts already existed.

Technically one could argue that Relativists should be called relativistic engineers.

At this level, radical emphasis on seeing everything within a relativistic or subjective frame of reference leaves the person close to a solipsistic position.

Mars four years earlierno, it would be closer to twelve years of real time, unadjusted by all the relativistic travel that had mixed up his personal chronology.

Using terabytes of qubit quantum data and applying relativistic Coulomb field transforms to these mind-consciousness holographic wavefunctions, it was quickly discovered that human consciousness could be quantum-teleported to points in space-time where entangled-pair wavefronts already existed.

That meant he had left Mars three hundred and fourteen years ago by Old Earth time, three hundred and thirty-eight years ago by Dest time, ignoring, as he always did, the fact that it was virtually meaningless to speak of simultaneity on two planets so far apart in a relativistic universe.

It was an insanely complicated problem, because he had to take into account a quantum twitch in Einsteinian time contraction as the black hole collapsed into existence from a somewhat larger mass, and because the relativistic speed at which the hole was traveling distorted space itself, making a sort of furrow along an Einsteinian geodesic.

The collapsar, vibrating, behaved not like a perfectly elastic ball but, rather, like a nonuniformly distorting balloon on a bounce, due to the magnification of relativistic effects.

As time passes, the configuration of all particles in the universe is represented in Platonia as a moving point, so it traces out a path, just like a relativistic world-line.

Shapieron used a system that constrained superdense masses to move in closed paths at relativistic speeds, which generated high rates of change of gravitic potential and created a matter-annihilation zone that powered the stress field.

Overproject Whisper, the quantum interphase mat-trans inducers opened a rift in the hyperdimen-sional quantum stream, between a relativistic here and there.

There’s a tower at one end, as sharp and axisymmetrical as a relativistic impactor (if warships were made of stone and had holes drilled in their dorsal end with huge parabolic chimes hanging inside).