Bible Dictionaries
Pneumatology

Webster's Dictionary

(1):

(n.) The doctrine of, or a treatise on, air and other elastic fluids. See Pneumatics, 1.

(2):

(n.) The science of spiritual being or phenomena of any description.

Bibliography Information
Webster, Noah. Entry for 'Pneumatology'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/pneumatology.html. 1828.