An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 1 Search : absorption line
absorption line
  خط ِ درشمی   
xatt-e daršami

Fr.: raie d'absorption   

A dark line in the spectrum of a source produced by a lower temperature gas cloud lying between the source and the observer.

→ absorption; → line.