Search Result for "atomic spectrum":
Wordnet 3.0

NOUN (1)

1. (physics) a spectrum of radiation caused by electron transitions within an atom; the series of spectrum lines is characteristic of the element; 



WordNet (r) 3.0 (2006):

atomic spectrum
    n 1: (physics) a spectrum of radiation caused by electron
         transitions within an atom; the series of spectrum lines is
         characteristic of the element