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Spectrograph \Spec"tro*graph\, n. [Spectrum + graph.] (Physics) (a) An apparatus for photographing or mapping a spectrum. (b) A photograph or picture of a spectrum. -- {Spec`tro*graph"ic}, a. -- {Spec`tro*graph"ic*al*ly}, adv. -- {Spec*trog"ra*phy}, n.
spectrograph n 1: a spectroscope by which spectra can be photographed 2: a photographic record of a spectrum [syn: {spectrogram}]