Main Entry: rel·a·tiv·is·tic

Pronunciation: \ˌre-lə-ti-ˈvis-tik\

Function: adjective

Date: 1886

1 : of, relating to, or characterized by relativity or relativism
2 : moving at a velocity such that there is a significant change in properties (as mass) in accordance with the theory of relativity <a relativistic electron>

— rel·a·tiv·is·ti·cal·ly \-ˈvis-ti-k(ə-)lē\ adverb