spectroscopy

The study of spectra, especially experimental observation of optical spectra or mass spectra, to determine the properties of their source.

A variety or instance of such study.

That branch of science, more particularly of chemical and physical science, which is concerned with the use of the spectroscope and with spectrum analysis.

the art and science dealing with the use of a spectroscope, and the production and analysis of spectra; the action of using a spectroscope.

The scientific study of spectra.

The use of spectrometers in chemical analysis.

the use of spectroscopes to analyze spectra