/ Dictionary / Index C cosmogony: Meaning and Definition of Find definitions for: cos•mog•o•ny Pronunciation: (koz-mog'u-nē), [key] — pl. -nies. a theory or story of the origin and development of the universe, the solar system, or the earth-moon system. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cosmogony (Thesaurus) cosmodrome cosmography Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language