Dictionary

relativistic

adjective rel·a·tiv·is·tic \ˌre-lə-ti-ˈvis-tik\

Definition of RELATIVISTIC

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

First Known Use of RELATIVISTIC

1886

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