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|Noun||1.||prism spectroscope - an optical instrument for spectrographic analysis|
collimator - optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam
mass spectrometer, spectrometer - spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer
optical instrument - an instrument designed to aid vision
optical prism, prism - optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image
spectrograph - a spectroscope by which spectra can be photographed