microspectroscope

noun

mi·​cro·​spec·​tro·​scope -ˈspek-trə-ˌskōp 

: a spectroscope arranged for attachment to a microscope for observation of the spectrum of light from minute portions of an object

microspectroscopic

-ˌspek-trə-ˈskäp-ik 

adjective

microspectroscopy

-ˌspek-ˈträs-kə-pē 

noun

plural microspectroscopies