Breadcrumb Home > Dictionary > Index O osteoblast: Meaning and Definition of Find definitions for: os•te•o•blast Pronunciation: (os'tē-u-blast"), [key] — n. Anat. a bone-forming cell. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: osteoblast (Thesaurus) osteoarthrosis osteochondritis TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: feral Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language