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spectrometer
(redirected from spectrograph)

    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
spec·trom·e·ter (spk-trm-tr)
n.
A spectroscope equipped with scales for measuring wavelengths or indexes of refraction.
spectro·metric (-tr-mtrk) adj.
spectrometer
[spektrom′ətər]
Etymology: L, spectrum, image; Gk, metron, measure
an instrument for measuring wavelengths of rays of a spectrum, the deviation of refracted rays, and the angles between faces of a prism. See also mass spectrometer, Mössbauer spectrometer.
spectrometer 
An instrument for making measurements of the angle of a prism and the index of refraction. It consists of a collimator, an astronomical telescope, a table for carrying a prism and a graduated circle.
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