/ Dictionary / Index O osteitis: Meaning and Definition of Find definitions for: os•te•i•tis Pronunciation: (os"tē-ī'tis), [key] — n. Pathol. inflammation of the substance of bone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: osteitis (Thesaurus) Osteichthyes osteitis deformans Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language