An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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redden
  ۱) سُرخیدن؛ ۲) سرخاندن  
1) sorxidan; 2) sorxândan
Fr.: 1) rougir; 2) faire rougir  
  1. (v.intr.) Of a spectral line, to reduce in intensity due to absorption by interstellar dust grains.
  2. (v.tr.) Of interstellar dust, to absorb the light that passes through it.

See also: Infinitives from → red.