SPECTROGRAPH

spectrogram, spectrograph

(noun) a photographic record of a spectrum

spectrograph

(noun) a spectroscope by which spectra can be photographed

Source: WordNet® 3.1

Etymology

Noun

spectrograph (plural spectrographs)

A machine for recording spectra, producing spectrograms.

Source: Wiktionary

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.

Source: Webster’s Unabridged Dictionary 1913 Edition

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