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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.

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

A spectroscope arranged to be attached to a telescope for observation of distant objects, as the sun or stars. Lockyer.

yond the edge of the moon at the time of a solar eclipse. They may be discovered with the spectroscope on any clear day. Called also solar prominences. See Illust. in Append.

A combination of spectroscope and bolometer for determining the distribution of energy in a spectrum. --Spec`tro*bo`lo*met"ric (#), a.

A spectroscope fitted for measurements of the luminious spectra observed with it.

ted on the principle of the photophone and used in spectrum analysis as an adjunct to the spectroscope. -- Spec`tro*phon"ic (#), a.

Of or pertaining to a spectroscope, or spectroscopy. -- Spec`tro*scop"ic*al*ly, adv.

One who investigates by means of a spectroscope; one skilled in the use of the spectroscope.

The use of the spectroscope; investigations made with the spectroscope.

ut on a screen, by direct vision, by photography, or otherwise. See Illust. of Light, and Spectroscope.