bronchiole(redirected from bronchiolus)
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any of the smallest bronchial tubes, usually ending in alveoli
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
A small, thin-walled branch of a bronchus, usually terminating in alveoli.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.