An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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secondary rainbow
  رنگین‌کمان ِ دومان  
rangin-kamân-e dovomân
Fr.: arc-en-ciel secondaire  

A fainter rainbow appearing about 10° above the → primary rainbow, as viewed by the observer. The secondary rainbow is about twice as wide, and has its colors reversed.

See also: → secondary; → rainbow.