museology
noun
mu·se·ol·o·gy ˌmyü-zē-ˈä-lə-jē 
: the science or profession of museum organization and management
museological
ˌmyü-zē-ə-ˈlä-ji-kəl
adjective museologist
ˌmyü-zē-ˈä-lə-jist
noun 
Word History
Etymology
museum + -logy
First Known Use
1885, in the meaning defined above