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Brackett series

American  
[brak-it seer-eez] / ˈbræk ɪt ˌsɪər iz /

noun

Physics.
  1. a series of lines in the infrared spectrum of hydrogen.


Etymology

Origin of Brackett series

First recorded in 1910–15; named after Frederick S. Brackett (1896–1988), U.S. physicist