/ Dictionary / Index A Adrian II: Meaning and Definition of Find definitions for: Adrian II Pronunciation: [key] Italian ecclesiastic: pope a.d. 867–872. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Adrian I Adrian III Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language