An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک



relative velocity
  تندای ِ بازانی  
tondâ-ye bâzâni
Fr.: vitesse relative  

For two objects A and B, the velocity which B, supposing itself at rest, assigns to A.

See also:relative; → velocity.