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
Investors are watching forthcoming Phase 3 trial results from Summit Therapeutics, which is testing a similar drug for lung cancer.
—
Angelica Peebles, CNBC, 31 July 2025
To assess the relevance of these findings for humans, the researchers looked at 132 patients with advanced melanoma or non-small cell lung cancer who received anti-PD1 therapy alone or in combination with chemotherapy.
—Hannah Millington, MSNBC Newsweek, 31 July 2025
In each case, Krystal’s drug would deliver a healthy copy of the gene to treat the disease, though the delivery mechanisms vary, with the lung cancer therapy using a nebulizer, for example.
—Amy Feldman, Forbes.com, 31 July 2025
For example, in a 2025 study analyzing data from 713 patients in France and China with advanced lung cancer, researchers found that patients who received immunotherapy earlier in the day lived longer with cancer.
—Time, 31 July 2025
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Angelica Peebles, CNBC, 31 July 2025
To assess the relevance of these findings for humans, the researchers looked at 132 patients with advanced melanoma or non-small cell lung cancer who received anti-PD1 therapy alone or in combination with chemotherapy.
—Hannah Millington, MSNBC Newsweek, 31 July 2025
In each case, Krystal’s drug would deliver a healthy copy of the gene to treat the disease, though the delivery mechanisms vary, with the lung cancer therapy using a nebulizer, for example.
—Amy Feldman, Forbes.com, 31 July 2025
For example, in a 2025 study analyzing data from 713 patients in France and China with advanced lung cancer, researchers found that patients who received immunotherapy earlier in the day lived longer with cancer.
—Time, 31 July 2025
See All Example Sentences for lung
Cite this Entry
“Lung.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lung. Accessed 4 Aug. 2025.
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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