/ Dictionary / Index O Osler: Meaning and Definition of Find definitions for: Os•ler Pronunciation: (ōs'lur, ōz'-), [key] 1849–1919, Canadian physician and professor of medicine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. OSlav Oslo 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