单词 | balmer series |
释义 | Balmer series in British English (German ˈbalmər) noun a series of lines in the hydrogen spectrum, discovered by Johann Jakob Balmer (1825–98) in 1885 Balmer series in American English (ˈbɑːlmər) noun Physics a series of lines in the visible spectrum of hydrogen Word origin [1960–65; named after J. J. Balmer (1825–98), Swiss physicist who derived its formula]This word is first recorded in the period 1960–65. Other words that entered Englishat around the same time include: bicycle kick, deinstitutionalize, go-go, power play, proxemics |
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