Meanings
- A hydrogen spectral series of transitions and resulting ultraviolet emission lines of the hydrogen atom as an electron goes from n ≥ 2 to n = 1 (where n is the principal quantum number), the lowest energy level of the electron.
Origin
Named after the Harvard physicist Theodore Lyman IV, who in 1906 discovered the first line in the spectrum.
Full word history & related roots →Cite this entry
Lyman series. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Lyman%20series
“Lyman series.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Lyman%20series. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “Lyman series,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Lyman%20series.
Source: Lyman series on Wiktionary, CC BY-SA 4.0.