Search Result for "fine structure":
Wordnet 3.0

NOUN (1)

1. the presence of groups of closely spaced spectrum lines observed in the atomic spectrum of certain elements;
- Example: "the fine structure results from slightly different energy levels"



WordNet (r) 3.0 (2006):

fine structure
    n 1: the presence of groups of closely spaced spectrum lines
         observed in the atomic spectrum of certain elements; "the
         fine structure results from slightly different energy
         levels"