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Answer for the clue "A spectroscope by which spectra can be photographed ", 12 letters:
spectrograph

Alternative clues for the word spectrograph

Word definitions for spectrograph in dictionaries

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1876, from spectro- + -graph "instrument for recording; something written." Related: Spectrographic ; spectrography .

WordNet Word definitions in WordNet
n. a spectroscope by which spectra can be photographed a photographic record of a spectrum [syn: spectrogram ]

Wikipedia Word definitions in Wikipedia
A spectrograph is an instrument that separates light into a frequency spectrum and records the signal using a camera . There are several kinds of machines referred to as spectrographs , depending on the precise nature of the waves. The term was first used ...

Wiktionary Word definitions in Wiktionary
n. A machine for recording spectrum, producing spectrograms.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Spectrograph \Spec"tro*graph\, n. [Spectrum + graph.] (Physics) An apparatus for photographing or mapping a spectrum. A photograph or picture of a spectrum. -- Spec`tro*graph"ic , a. -- Spec`tro*graph"ic*al*ly , adv. -- Spec*trog"ra*phy , n.

Usage examples of spectrograph.

The new-model Metallurgists I got differed from the previous model only in knowing the use of Beeman Spectrographs.

It carried two spectrographs, a high-speed photometer, a wide-field Advanced Charge-Coupled Device, and a fine guidance sensor.

After twelve minutes, the cesium clocks of projected time and real time dropped to the single digits, whereupon the spectrograph, tracking the exhaust flame of the lander, went blank and after a row of zeros displayed the last, classic word: Brennschluss.