1
a
: one of the usually paired compound saccular thoracic organs that constitute the basic respiratory organs of an air-breathing vertebrate
b
: any of various respiratory organs of invertebrates
2
a
: a device enabling individuals abandoning a submarine to rise to the surface
b
: a mechanical device for regularly introducing fresh air into and withdrawing stale air from the lung : respirator compare iron lung
Examples of lung in a Sentence
He filled his lungs with the clean. fresh air.
Recent Examples on the Web
Other scans showed tumors in his bones, lymph nodes, lungs and pancreas.
—
Kerry Breen, CBS News, 20 June 2026
Moore cautioned people with lung issues or smoke sensitivity to avoid outdoor activities, but said crews have mitigated hazardous materials at the site.
—Los Angeles Times, 20 June 2026
On March 21 Bertrand Nelson, a 56-year-old man in New Jersey who has lived with HIV for more than 20 years, received a double lung and liver transplant from a deceased donor who also had HIV.
—Tanya Lewis, Scientific American, 19 June 2026
Nelson is doing fine now In 2000, Nelson was diagnosed with HIV and sarcoidosis, a condition that went into remission until a severe case of Legionnaires’ disease in 2021 reactivated it, damaging both his lungs and liver.
—Mrigakshi Dixit, Interesting Engineering, 19 June 2026
See All Example Sentences for lung
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Kerry Breen, CBS News, 20 June 2026
Moore cautioned people with lung issues or smoke sensitivity to avoid outdoor activities, but said crews have mitigated hazardous materials at the site.
—Los Angeles Times, 20 June 2026
On March 21 Bertrand Nelson, a 56-year-old man in New Jersey who has lived with HIV for more than 20 years, received a double lung and liver transplant from a deceased donor who also had HIV.
—Tanya Lewis, Scientific American, 19 June 2026
Nelson is doing fine now In 2000, Nelson was diagnosed with HIV and sarcoidosis, a condition that went into remission until a severe case of Legionnaires’ disease in 2021 reactivated it, damaging both his lungs and liver.
—Mrigakshi Dixit, Interesting Engineering, 19 June 2026
See All Example Sentences for lung
Cite this Entry
“Lung.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lung. Accessed 21 Jun. 2026.
Copy CitationKids Definition
lung
noun1
a
: one of the usually paired organs forming the special breathing structure of vertebrates that breathe air
b
: any of various respiratory organs of invertebrates
2
: a device (as an iron lung) to promote breathing and make it easier
Medical Definition
lung
noun1
a
: one of the usually two compound saccular organs that constitute the basic respiratory organ of air-breathing vertebrates, that normally occupy the entire lateral parts of the thorax and consist essentially of an inverted tree of intricately branched bronchioles communicating with thin-walled terminal alveoli swathed in a network of delicate capillaries where the actual gaseous exchange of respiration takes place, and that in humans are somewhat flattened with a broad base resting against the diaphragm and have the right lung divided into three lobes and the left into two lobes
b
: any of various respiratory organs of invertebrates
2
: a mechanical device for regularly introducing fresh air into and withdrawing stale air from the lungs : respirator see iron lung
lunged
adjective
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