An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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commutator
  آموتگر  
âmutgar
Fr.: commutateur  

Math.: The commutator of a and b is the element c of a group such that bac = ab.

See also: Agent noun from → commute.