Spectroscopy (noun)

The scientific study of the interaction between matter and electromagnetic radiation, especially in the visible and ultraviolet range.

Origin:

Mid 19th century: from spectrum + -scopy.

Examples:

1. Spectroscopy was used to determine the composition of distant stars.
2. Spectroscopy was a valuable tool in the analysis of chemical compounds.
3. Spectroscopy provided valuable data for the study of quantum mechanics.
4. Spectroscopy was a key component in the study of molecular biology.
5. Spectroscopy was an important field in both theoretical and experimental physics.