/ Dictionary / Index B bronchiole: Meaning and Definition of Find definitions for: bron•chi•ole Pronunciation: (brong'kē-ōl"), [key] — n. Anat. a small branch of a bronchus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bronchiole (Thesaurus) bronchiectasis bronchitis 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