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bronchus Line breaks: bron|chus
Pronunciation: /ˈbrɒŋkəs/

Definition of bronchus in English:

noun (plural bronchi ˈbrɒŋkʌɪ)

Any of the major air passages of the lungs which diverge from the windpipe.
Example sentences
  • The tumor frequently extended to the adjacent lung parenchyma, bronchi, visceral pleura, and mediastinal soft tissues.
  • The airways (trachea, bronchi, bronchioles) are surrounded by a type of involuntary muscle known as smooth muscle.
  • With respect to the lungs, formalin was infused through the trachea or mainstem bronchi until the lungs were normally expanded.


Late 17th century: from late Latin, from Greek bronkhos 'windpipe'.

Definition of bronchus in:

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