An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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rotational axis
  آسه‌ی ِ چرخش  
âse-ye carxeš
Fr.: axe de rotation  

An imaginary line about which a solid object rotates. Same as → rotation axis and → axis of rotation.

See also: → rotational; → axis.