An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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semi-forbidden transition
  گذرش ِ نیمه-بژکم  
gozareš-e nime-bažkam
Fr.: transition semi-interdite  

An → atomic transition whose probability is reduced by a factor of the order of 106 because of → selection rules. Same as → interconnection line.

See also: → semi-; → forbidden; → transition.