An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Balmer discontinuity
  ناپیوستگی ِ بالمر  
nâpeyvastegi-ye Bâlmer
Fr.: discontinuité de Balmer  

An abrupt decrease in the intensity of the continuum at the limit of the → Balmer series of hydrogen (at about 3650 Å), caused by the energy absorbed when electrons originally in the second → energy level are ionized. Same as → Balmer jump.

See also: → Balmer; → discontinuity.