An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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epicyclic oscillation
  نوش ِ اپی-چرخه‌ای  
naveš-e apicarxe-yi
Fr.: oscillation épicyclique  

In a → disk galaxy, the motion of a star about the orbital → guiding center when it is displaced radially. See also → epicyclic frequency, → epicyclic theory.

See also: → epicyclic; → oscillation.