【医】 支气管

[ noun ]
either of the two main branches of the trachea
<noun.body>

Bronchial \Bron"chi*al\, a. [Cf. F. bronchial. See {Bronchia}.]
(Anat.)
Belonging to the bronchi and their ramifications in the
lungs.

{Bronchial arteries}, branches of the descending aorta,
accompanying the bronchia in all their ramifications.

{Bronchial cells}, the air cells terminating the bronchia.

{Bronchial glands}, glands whose functions are unknown,
seated along the bronchia.

{Bronchial membrane}, the mucous membrane lining the
bronchia.

{Bronchial tube}, the bronchi, or the bronchia.