An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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absorption coefficient
  همگر ِ درشم  
hamgar-e daršam
Fr.: coefficient d'absorption  

The fraction of normally incident light that is absorbed per unit path length or by a unit mass of absorbing medium.

See also: → absorption; → coefficient.