/ Dictionary / Index A Abbasid: Meaning and Definition of Find definitions for: Ab•bas•id Pronunciation: (u-bas'id, ab'u-sid), [key] — n. a member of a dynasty of caliphs ruling at Baghdad, a.d. 750–1258, governing most of the Islamic world and claiming descent from Abbas, uncle of Muhammad. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Abbai abbatial Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language