mesothelioma

noun

me·​so·​the·​li·​o·​ma ˌme-zə-ˌthē-lē-ˈō-mə How to pronounce mesothelioma (audio)
ˌmē-,
-sə-
plural mesotheliomas also mesotheliomata ˌme-zə-ˌthē-lē-ˈō-mə-tə How to pronounce mesothelioma (audio)
ˌmē-,
-sə-
: a usually malignant tumor derived from mesothelial tissue (such as that lining the peritoneum or pleura)

Examples of mesothelioma in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In the past year, J&J has been hit with several substantial verdicts in mesothelioma cases, but Monday’s is among the largest. Reuters 14 Hr Ago, CNN Money, 8 Oct. 2025 But according to the Sacramento City Unified School District, the carpet covered tiles containing asbestos which, if exposed, can cause health issues such as lung cancer and mesothelioma. David Chiu, PEOPLE, 19 Sep. 2025 Finally, she was diagnosed with peritoneal mesothelioma. Alyssa Goldberg, USA Today, 7 Aug. 2025 This includes melanoma—the most dangerous type of skin cancer—and mesothelioma—mainly affecting the lining of the lungs, though can also affect the lining of the stomach, heart of testicles. Hannah Millington, MSNBC Newsweek, 4 Aug. 2025 See All Example Sentences for mesothelioma

Word History

Etymology

New Latin

First Known Use

circa 1899, in the meaning defined above

Time Traveler
The first known use of mesothelioma was circa 1899

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Cite this Entry

“Mesothelioma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mesothelioma. Accessed 24 Oct. 2025.

Medical Definition

mesothelioma

noun
me·​so·​the·​li·​o·​ma ˌmez-ə-ˌthē-lē-ˈō-mə, ˌmēz-, ˌmēs-, ˌmes- How to pronounce mesothelioma (audio)
plural mesotheliomas also mesotheliomata -mət-ə How to pronounce mesothelioma (audio)
: a tumor derived from mesothelial tissue (as that lining the peritoneum or pleura)

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