Definition of "bronchiole" [bron•chi•ole]

• Any of the fine, thin-walled, tubular extensions of a bronchus. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Albuterol Inhalation Aerosol is a prescription bronchiole throat-spray (in the US) and has always worked for me."
• "Whatever it is, spores or something in the air agitates air/bronchiole passages, and coughing can be excruciating."
• "Whatever is in the medication, it feels like it subdues the swollen bronchiole passages and breathing is like a breath of fresh air without the constriction."