spectrograph
/ˈspɛktrəˌɡræf/
noun
- A scientific instrument that separates light or other radiation into its component wavelengths and records the resulting spectrum, used to analyze the chemical composition of substances.
- A spectrograph attached to the telescope revealed the elements present in the nebula.
- The astronomer used a spectrograph to study the light from distant stars.
- The lab's new spectrograph can analyze samples in just a few seconds.
Synonyms