An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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foreground absorption
  درشم ِ پیش-زمینه  
daršam-e pišzaminé
Fr.: absorption d'avant-plan  

Loss of radiant energy received from an astronomical object due to the presence of absorbing matter situated between the object and observer.

See also: → foreground; → absorption.