bron·chus | \ˈbräŋ-kəs \
plural bronchi\ˈbräŋ-ˌkī, -ˌkē \

Definition of bronchus 

: either of the two primary divisions of the trachea that lead respectively into the right and the left lung broadly : bronchial tube

Examples of bronchus in a Sentence

Recent Examples on the Web

For instance, the American Cancer Society epidemiologists determined that 59% of lung and bronchus cancers could be averted nationwide if everyone got the same care as people who went to college. Karen Kaplan,, "A plan to prevent more than 1 in 5 cancer deaths, without having to invent any new treatments," 10 July 2018 Your tree, bronchi infested with crows multiplying so dense no wind or light could pass through. Hartford Courant,, "The Poems Of Aaron Caycedo-Kimura: Honoring Ones Parents," 13 June 2018 These included cancers of the prostate (which declined by an average of 7.6% per year), lung and bronchus (2.4%), larynx (2.3%), colon and rectum (1.9%), esophagus (1.6%), bladder (0.8%) and brain and nervous system (0.2%). Karen Kaplan,, "The death rate from cancer is falling for American men, women and children of all backgrounds," 22 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bronchus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bronchus

circa 1706, in the meaning defined above

History and Etymology for bronchus

New Latin, from Greek bronchos

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Time Traveler for bronchus

The first known use of bronchus was circa 1706

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More Definitions for bronchus


bron·chus | \ˈbräŋ-kəs \
plural bronchi\ˈbräŋ-ˌkī, -ˌkē \

Medical Definition of bronchus 

: either of the two primary divisions of the trachea that lead respectively into the right and the left lung broadly : bronchial tube

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More from Merriam-Webster on bronchus

See words that rhyme with bronchus

Britannica English: Translation of bronchus for Arabic Speakers Encyclopedia article about bronchus

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a state of commotion or excitement

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