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Definition of lung

lung

/lʌŋ/
lung

Plural:lungs
•
Adjective:pulmonary
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lung Lexical Profile

lung Game Scores & Validity

• noun

1

Either of the two primary organs of respiration in humans and many other vertebrates, located within the thoracic cavity and responsible for exchanging oxygen and carbon dioxide with the blood.

Example

"The doctor listened to her lungs with a stethoscope to check for any signs of infection."


2

A large open space, especially a forest or urban park, that provides fresh air and improves the environment of a city or region.

Example

"Central Park is often described as the green lung of New York City."


3

A device or mechanism that performs the function of natural lungs, such as providing oxygen to an environment or an individual.

Example

"An iron lung was once widely used to help polio patients breathe when their muscle control failed."

Synonyms
View all synonyms for lung

• Rhymes for lung

Word Origin & Etymology

From Old English 'lungen', of Germanic origin; related to Dutch 'long' and German 'Lunge'. Ultimately derived from a Proto-Indo-European root meaning 'light' (in weight), referring to the fact that lungs are less dense and much lighter than other major internal organs.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Lung. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/lung
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