/ Dictionary / Index B bronchial tube: Meaning and Definition of Find definitions for: bron'chial tube" Pronunciation: [key] a bronchus or any of its ramifications or branches. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bronchial pneumonia bronchiectasis Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language