Source : Webster's Revised Unabridged Dictionary (1913)

Spectroscope \Spec"tro*scope\, 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.

Source : WordNet®

spectroscope
     n : an optical instrument for spectrographic analysis [syn: {prism
         spectroscope}]