organology
/ˌɔːɡəˈnɒlədʒi/noun
1The theory that the human brain is composed of numerous superficial organs that are responsible for propensities, intellect, character, etc.; phrenology. Compare organ. Now historical.
2 Biology. The scientific study of the anatomy and physiology of the organs of animals or plants. Now rare.
3The study of the history of musical instruments.
Origin
Early 19th century. From organo- + -logy. Compare French organologie.