You searched for: “spectrograph
spectrograph
A spectroscope (instrument for dispersing light) equipped to photograph or otherwise record spectra (a continuous distribution of colored lights).
Word Entries containing the term: “spectrograph
acoustic spectrograph (s) (noun), acoustic spectrographs (pl)
A device using sound waves to study the transmissions and reflections that are characteristic of ocean thermal layers and marine organisms: The oceanographers used acoustic spectrographs to determine the various levels of the heat waves of the water and of the creatures that existed in different parts of the sea.
astronomical spectrograph (s) (noun), astronomical spectrographs (pl)
A spectroscope in which the spectra of stars and other celestial objects are recorded on photographic film.

A spectroscope is an instrument for dispersing light; usually, light in the visible range, into a spectrum in order to measure it; such as, a continuous distribution of colored light produced when a beam of white light is dispersed into its components; for example, by a prism.