/ Dictionary / Index O onomatology: Meaning and Definition of Find definitions for: on•o•ma•tol•o•gy Pronunciation: (on"u-mu-tol'u-jē), [key] — n. onomastics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. onomastics onomatopoeia Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language