Webster's Revised Unabridged Dictionary · 1913

Microspectroscope

Microspectroscope (mī`kro*spek"tro*skōp or mi`kro*spek"tro*skōp) , noun

[Micro- + spectroscope.]

(Physics) A spectroscope arranged for attachment to a microscope, for observation of the spectrum of light from minute portions of any substance.