PNEUMATOLOGY
Etymology
Noun
pneumatology (countable and uncountable, plural pneumatologies)
The study of spiritual beings and phenomena, especially the interactions between humans and God.
(Christianity, theology) The study of the Holy Spirit as revealed in Scripture.
The science dealing with air or gases, their physical and chemical properties, therapeutic applications, etc.
Source: Wiktionary
Pneu`ma*tol"o*gy, n. Etym: [Pneumato- + -logy: cf. F. pneumatologie.]
1. The doctrine of, or a treatise on, air and other elastic fluids.
See Pneumatics, 1.
2. (Philos. & Theol.)
Definition: The science of spiritual being or phenomena of any description.
Source: Webster’s Unabridged Dictionary 1913 Edition