/ Dictionary / Index T tracheo-: Meaning and Definition of Find definitions for: tracheo- Pronunciation: [key] a combining form representing trachea in compound words: tracheotomy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trachelium tracheobronchial Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language