/ Dictionary / Index O osteotomy: Meaning and Definition of Find definitions for: os•te•ot•o•my Pronunciation: (os"tē-ot'u-mē), [key] — pl. -mies. the dividing of a bone, or the excision of part of it. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: osteotomy (Thesaurus) osteotome Österreich Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language