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
In reality, Reubens had been quietly battling lung cancer for six years, confiding only in a small circle of close friends.
—
Lizzie Hyman, People.com, 31 May 2025
Health officials in Michigan are urging residents to watch for symptoms such as coughing, chest tightness, and difficulty breathing, especially among vulnerable populations like children, older adults, and those with heart or lung conditions.
—Martha McHardy, MSNBC Newsweek, 31 May 2025
Michael Monahan DeBary Charity shouldn’t touch Medicaid Ten million dollars may not sound like much to operators of a political action committee, but for my brother with Stage 4 lung cancer, a fraction of that amount provided three additional years of life.
—Letters To The Editor, The Orlando Sentinel, 30 May 2025
Depending on how close the dust and smoke get to Earth’s surface, these kinds of particulate matter can be harmful to people’s health, particularly for people who are very young or very old and those who have asthma or heart or lung disease.
—Meghan Bartels, Scientific American, 30 May 2025
See All Example Sentences for lung
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Lizzie Hyman, People.com, 31 May 2025
Health officials in Michigan are urging residents to watch for symptoms such as coughing, chest tightness, and difficulty breathing, especially among vulnerable populations like children, older adults, and those with heart or lung conditions.
—Martha McHardy, MSNBC Newsweek, 31 May 2025
Michael Monahan DeBary Charity shouldn’t touch Medicaid Ten million dollars may not sound like much to operators of a political action committee, but for my brother with Stage 4 lung cancer, a fraction of that amount provided three additional years of life.
—Letters To The Editor, The Orlando Sentinel, 30 May 2025
Depending on how close the dust and smoke get to Earth’s surface, these kinds of particulate matter can be harmful to people’s health, particularly for people who are very young or very old and those who have asthma or heart or lung disease.
—Meghan Bartels, Scientific American, 30 May 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 11 Jun. 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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