spectroscope
spec-tro-scope
noun
An optical instrument used to separate light into its constituent colours for analysis.
"The astronomer used a spectroscope to study starlight."
Thesaurus
Synonyms: prism spectroscope
spec-tro-scope
An optical instrument used to separate light into its constituent colours for analysis.
"The astronomer used a spectroscope to study starlight."
Synonyms: prism spectroscope