/ Dictionary / Index M Mansur, al-: Meaning and Definition of Find definitions for: Man•sur al- Pronunciation: (al'man-soor'), [key] — (عAbdullāh al-Mansūr), a.d.712?–775, Arab caliph 754–775: founder of Baghdad 764. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mansuetude Mansûra Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language