An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک



principle of action and reaction
  پَروز ِ ژیرش و واژیرش، ~ کنش و واکنش  
parvaz-e žireš va vâžireš, ~ koneš va vâkoneš
Fr.: principe d'action et de réaction  

Newton’s third law of motion, which states that for every action there must be an equal and opposite reaction.

See also:principle; → action; → reaction.