Brackett series

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

noun Physics.

a series of lines in the infrared spectrum of hydrogen.

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Origin of Brackett series

First recorded in 1910–15; named after Frederick S. Brackett (1896–1988), U.S. physicist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020