An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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invariance
  ناورتایی  
nâvartâyi
Fr.: invariance  

Any property of a physical law or quantity that is unchanged after the application of certain classes of transformations.

See also: Invariance; noun of → invariant.