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Lyman
A surname. / A male given name / A ghost town in California, United States. / A town in Maine, United States. / A census-designated place in Mississippi, United States.
Lyman
Lyman County
Lyman's law
(linguistics) A linguistic rule stating that rendaku does not occur if the second element of the compound contains a voiced obstruent in any position, e.g. yama + kaji produces yamakaji (mountain fire), not *yamagaji.
Lyman series
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.
Lyman-alpha forest
(astronomy) A series of absorption lines in the spectra of distant galaxies and quasars, arising from the Lyman-alpha electron transition of the neutral hydrogen atom.
enormous Lyman-alpha nebula
(astronomy) A large gas cloud (nebula) larger than galaxies, found in intergalactic space, which radiates with an emission spectrum containing 2.47 THz lines (Lyman-alpha lines).
lymantrids
lymantriid
(zoology) Any of the moth family Lymantriidae.
lymantriids
plural of lymantriid