An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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free fall
  افت ِ آزاد  
oft-e âzâd (#)
Fr.: chute libre  

The motion of a body under the influence of → gravity alone. See also → free-fall time.

See also: → free; → fall.