Adjective: relativistic ,re-lu-ti'vis-tik
- (physics) relating or subject to the special or the general theory of relativity
"radiation from relativistic particles"; "relativistic quantum mechanics"; "relativistic increase in mass"
- (physics) moving at close to the speed of light
"The particle accelerator produced relativistic electrons"
- Of or relating to the philosophical doctrine of relativism
"He held relativistic views on morality"
Encyclopedia: Relativistic