'Bronchus' definitions:

Definition of 'bronchus'

(from WordNet)
noun
Either of the two main branches of the trachea [syn: bronchus, bronchial tube]

Definition of 'Bronchus'

From: GCIDE
  • Bronchus \Bron"chus\, n.; pl. Bronchi. [NL., fr. Gr. ? windpipe. Cf. Bronchia.] (Anat.) One of the subdivisions of the trachea or windpipe; esp. one of the two primary divisions. [1913 Webster]