bronchial tube

noun
1.
a bronchus or any of its ramifications or branches.
Origin
1840-50
British Dictionary definitions for bronchial tubes

bronchial tubes

plural noun
1.
the bronchi or their smaller divisions
bronchial tubes in Medicine

bronchial tube n.
Any of the smaller divisions of the bronchi of the lung.

bronchial tubes in Science
bronchial tube
  (brŏng'kē-əl)   
A bronchus or any of the tubes branching from a bronchus. The bronchial tubes decrease in size as they descend into the lungs.
bronchial tubes in Culture
bronchial tubes [(brong-kee-uhl)]

The system of tubelike structures that connects the trachea to the lungs. (See respiratory system.)