Definition of Lyman series in English:

Lyman series

Syllabification: Ly·man se·ries
Pronunciation: /ˈlīmən ˌsirēz
A series of lines in the ultraviolet spectrum of atomic hydrogen, between 122 and 91 nanometers.
More example sentences
  • When the electron returns all the way to the innermost orbital the photon emitted has more energy and forms a line in the Lyman series found in the higher energy, ultraviolet portion of the spectrum.


early 20th century: named after Theodore Lyman (1874–1954), American physicist.

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Word of the day retroflex
Pronunciation: ˈrɛtrə(ʊ)flɛks
turned backwards