An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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irreversible process
  فراروند ِ واگشت‌ناپذیر  
farâravand-e vâgaštnâpazir (#)
Fr.: processus irréversible  

A physical process in which the combined → entropy of the → system and the → environment increases. During an irreversible process the system is not in equilibrium at all instances of time. Most of the processes in nature are irreversible. → reversible process.

See also: → irreversible; → process.