n. The study of angels. Angels have been grouped into nine categories, from lowest to highest: angel, virtue, archangel, power, principality, dominion, throne, cherub, and seraph.
the GNU version of the Collaborative International Dictionary of English
n. A discourse on angels, or a body of doctrines in regard to angels.
The Century Dictionary and Cyclopedia
n. The doctrine of angels; that portion of theology which treats of angelic beings; a discourse on angels.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the branch of theology that is concerned with angels
Word Usage
"Call angelology “theology-fiction” or “philosophy-fiction” if you like, or regard it as a legitimate part of theology as queen of the sciences and of philosophy as her handmaiden."