分ぶん光こう学がくMeaningsNoun1. spectroscopyKanji used分part光ray学studyPitch accentぶんこうがくComposed of分ぶん光こうseparation of light into its spectral components; dispersionNoun学がくlearning; scholarship; study; erudition; knowledge; education; study of ...; -ology; -icsNoun