An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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differential rotation
  چرخش ِ دگرسانه‌ای  
carxeš-e degarsâneyi
Fr.: rotation différentielle  

  1. Of a single body (such as a star or a gaseous planet), the axial rotation of equatorial latitudes faster than polar latitudes.

  2. Of a galaxy, the orbiting of stars nearer the center faster than those at the edge.

See also: → differential; → rotation.