Sinonim fine structure

English Thesaurus

1. the presence of groups of closely spaced spectrum lines observed in the atomic spectrum of certain elements (noun.phenomenon)

hypernym	:	spectrum line,
definition	:	an isolated component of a spectrum formed by radiation at a uniform frequency (noun.communication)

part meronym	:	atomic spectrum,
definition	:	(physics) a spectrum of radiation caused by electron transitions within an atom; the series of spectrum lines is characteristic of the element (noun.phenomenon)