| Spectroscopy (n.) The use of the spectroscope; investigations made with the spectroscope. Thesaurus Entries astrogeology, astrognosy, astrography, astrolithology, astronomy, astrophotography, astrophysics, celestial mechanics, chromatics, chromatography, chromatology, chromatoscopy, colorimetry, electron optics, gravitational astronomy, infrared spectroscopy, meteoritics, microscopics, microscopy, optical physics, optics, optometry, photography, radar astronomy, radio astronomy, solar physics, spectrography, spectrometry, spectrophotometry, spectrum analysis, stargazing, stellar photometry, stereoscopy, telescopy, uranography, uranology, uranometry | ![]() |