Definition of bronchus in English:

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Pronunciation: /ˈbräNGkəs/

noun (plural bronchi /-kī/ /-kē/)

Any of the major air passages of the lungs that 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'.

For editors and proofreaders

Syllabification: bron·chus

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