Astronomy Answers: From the Astronomical Dictionary

# Astronomy AnswersFrom the Astronomical Dictionary

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The description of the word you requested from the astronomical dictionary is given below.

relativistic

Relativistic means that the speed or escape velocity becomes so great (namely comparable to the speed of light) that the classical theories of force and motion cannot make sufficiently accurate predictions anymore. To be able to make accurate predictions for relativistic circumstances, you need the full theories of relativity.