n. [ Micro- + spectroscope. ] (Physics) A spectroscope arranged for attachment to a microscope, for observation of the spectrum of light from minute portions of any substance. [ 1913 Webster ]
n. [ Spectrum + -scope. ] (Physics) An optical instrument for forming and examining spectra (as that of solar light, or those produced by flames in which different substances are volatilized), so as to determine, from the position of the spectral lines, the composition of the substance. [ 1913 Webster ]
n. [ Gr. &unr_; far off + E. spectroscope. ] (Astron.) A spectroscope arranged to be attached to a telescope for observation of distant objects, as the sun or stars. Lockyer. [ 1913 Webster ]