分ぶん光こう法ほうぶんこうほうMeanings1nounspectroscopyScientific term for the study of the interaction between matter and electromagnetic radiation. Related to 分光学 (spectroscopy as a field of study).See also: 分光学 (ぶんこうがく)分ぶん光こう法ほうを用もちいて物ぶっ質しつ