pneumatology
noun
pneu·ma·tol·o·gy ˌnü-mə-ˈtä-lə-jē 
ˌnyü-
: the study of spiritual beings or phenomena
Word History
Etymology
New Latin pneumatologia, from Greek pneumat-, pneuma + New Latin -logia -logy
First Known Use
1673, in the meaning defined above
Medical Definition
pneumatology
noun
pneu·ma·tol·o·gy ˌn(y)ü-mə-ˈtäl-ə-jē
plural pneumatologies
: a science dealing with the medical uses of air and gases