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pneumonitis

American

[noo-muh-nahy-tis, nyoo-] / ˌnu məˈnaɪ tɪs, ˌnju- /

noun

Pathology.

inflammation of the lung caused by a virus or exposure to irritating substances.

pneumonitis British

/ ˌnjuːmɒnˈaɪtɪs /

noun

inflammation of the lungs

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of pneumonitis

From New Latin, dating back to 1815–25; see origin at pneumon-, -itis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

pneumonitis

Following a pneumonitis event, the patient opted to withdraw from supported care, at which point his symptoms worsened until the patient died.

From Barron's ● Apr. 28, 2026

Anti-inflammatory drugs given to patients during radiation therapy can dampen the inflammation in the lungs, called pneumonitis, but not all patients respond equally well.

From Science Daily ● Oct. 17, 2023

The medical cause of death was confirmed as Covid-19 pneumonitis with the secondary cause as chronic obstructive pulmonary disease.

From BBC ● Aug. 31, 2023

Depending on the dosage, it also can cause delayed pulmonary edema, pneumonitis, bronchitis and dental erosion.

From Seattle Times ● Feb. 15, 2023

“Did it turn out to be pneumonitis? That’s what Mr. Pilsen thought.”

From "Do Androids Dream of Electric Sheep?" by Philip K. Dick

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