/ Dictionary / Index O ostensory: Meaning and Definition of Find definitions for: os•ten•so•ry Pronunciation: (o-sten'su-rē), [key] — pl. -ries. monstrance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ostensorium ostentation 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