pulmonary tree

American

noun

Anatomy.

the trachea, bronchi, and bronchioles of the lungs, which together resemble an upside-down tree.

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But you know, of course, that the twigs of the pulmonary tree in our breast do not end in leaves.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023