bronchodilator

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bronchodilator

[¦bräŋ·kō′dī‚lād·ər]
(medicine)
An instrument used to increase the caliber of the pulmonary air passages.
(pharmacology)
Any agent that causes a widening of the air passages in bronchi and bronchioles.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.