/ Dictionary / Index T trombone: Meaning and Definition of Find definitions for: trom•bone Pronunciation: (trom-bōn', trom'bōn), [key] — n. a musical wind instrument consisting of a cylindrical metal tube expanding into a bell and bent twice in ashape, usually equipped with a slide Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trombone (Thesaurus) trombiculiasis trommel Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language