Spectroscopic (adjective)

1. Relating to the study of the properties of matter and radiation by analyzing the way that they interact with light.
2. Relating to the use of a spectroscope, an instrument that is used to analyze the properties of matter and radiation by breaking light into its component parts.

Origin:

From the latin word spectro ("appearance") + scopos ("watcher"). .

Examples:

1. The scientist used spectroscopic analysis to determine the chemical composition of the unknown substance.
2. The telescope was equipped with spectroscopic instruments to study the properties of stars and galaxies.
3. The spectroscopic data revealed that the planet had a similar atmosphere to Earth.
4. The spectroscopic technique allowed us to determine the isotopic composition of the sample.
5. The spectroscopic instrumentation was used to identify the elements present in the mineral sample.