— relativistically , adv.
/rel'euh teuh vis"tik/ , adj.
1. of or pertaining to relativity or relativism.
2. Physics.
a. subject to the special or the general theory of relativity.
b. (of a velocity) having a magnitude that is a significant fraction of the speed of light.
c. (of a particle) having a relativistic velocity: radiation from relativistic electrons.
[ 1885-90; RELATIVIST + -IC ]