Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Either of two main branches of the trachea, leading directly to the lungs.

from The Century Dictionary.

  • noun Either of the two main branches of the trachea: also sometimes used to denote any small bronchial tube. See trachea, lung, and cut under thorax.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) One of the subdivisions of the trachea or windpipe; esp. one of the two primary divisions.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Either of two airways, which are primary branches of the trachea, leading directly into the lungs.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun either of the two main branches of the trachea

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[New Latin, from Greek bronkhos, windpipe.]

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Examples

  • Main bronchus occlusion for treatment of congenital diaphragmatic hernia in fetal lambs.

    CHOP congenital diaphragmatic hernia publications 2010

  • The right bronchus is shorter, wider, and more nearly vertical than its fellow of the opposite side, and is practically the continuation of the trachea, while the left bronchus might be considered as a branch.

    Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery Chevalier Jackson 1911

  • Sometimes the cancer cells will be right around the trachea, right around the bronchus, which is some of the cells in the lung and typically that cancer will develop in that area.

    CNN Transcript Aug 8, 2005 2005

  • For example, lung and bronchus cancer killed 2.31 men for every 1 woman.

    Study: More U.S. men die from cancer than women 2011

  • Say a dose of virus particles is inhaled as an aerosol into your bronchus.

    Creeping Crud grrm 2010

  • For Fitz, with the lung tumor wrapped ominously around her bronchus, the biggest hurdle had been the local control of her cancer.

    The Emperor of All Maladies Siddhartha Mukherjee 2010

  • The cells in her bronchus, he began, had acquired mutations in their genes that had allowed them to grow autonomously and uncontrollably.

    The Emperor of All Maladies Siddhartha Mukherjee 2010

  • The man visits a physician and a CT scan is performed, revealing a rindlike mass wrapped around a bronchus in the lung.

    The Emperor of All Maladies Siddhartha Mukherjee 2010

  • The cells in her bronchus, he began, had acquired mutations in their genes that had allowed them to grow autonomously and uncontrollably.

    The Emperor of All Maladies Siddhartha Mukherjee 2010

  • The man visits a physician and a CT scan is performed, revealing a rindlike mass wrapped around a bronchus in the lung.

    The Emperor of All Maladies Siddhartha Mukherjee 2010

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