Vocabulary : Spectrometry to Spectrum

Spectrometry : Art or process of using the spectrometer, or of measuring wave lengths of rays of a spectrum.
Spectrophone : An instrument constructed on the principle of the photophone and used in spectrum analysis as an adjunct to the spectroscope.
Spectrophotometer : An instrument for measuring or comparing the intensites of the colors of the spectrum.
Spectrophotometry : The art of comparing, photometrically, the brightness of two spectra, wave length by wave length; the use of the spectrophotometer.
Spectroscope : An optical instrument for forming and examining spectra (as that of solar light, or those produced by flames in which different substances are volatilized), so as to determine, from the position of the spectral lines, the composition of the substance.

Spectroscopic : Alt. of Spectroscopical
Spectroscopical : Of or pertaining to a spectroscope, or spectroscopy.
Spectroscopist : One who investigates by means of a spectroscope; one skilled in the use of the spectroscope.
Spectroscopy : The production and investigation of spectra; the use of the spectroscope; also, the science of spectroscopic phenomena. ;; The use of the spectroscope; investigations made with the spectroscope.
Spectrum : An apparition; a specter. ;; The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed or studied either as spread out on a screen, by direct vision, by photography, or otherwise. See Illust. of Light, and Spectroscope. ;; A luminous appearance, or an image seen after the eye has been exposed to an intense light or a strongly illuminated object. When the object is colored, the image appears of the complementary color, as a green image seen after viewing a red wafer lying on white paper. Called also ocular spectrum.

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