noun
( chemistry ) ( pl. aˌtomic ˈspectra ) a series of lines with characteristic frequencies which show the range of radiation that is characteristic of a chemical element
noun
( chemistry ) ( pl. aˌtomic ˈspectra ) a series of lines with characteristic frequencies which show the range of radiation that is characteristic of a chemical element
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005