mesothelioma

noun

me·​so·​the·​li·​o·​ma ˌme-zə-ˌthē-lē-ˈō-mə 

ˌmē-, 

-sə-

plural mesotheliomas also mesotheliomata ˌme-zə-ˌthē-lē-ˈō-mə-tə 

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

Most cases of mesothelioma are believed to be the result of asbestos exposure, says the National Cancer Institute. —Amaris Encinas, USA Today, 28 May 2026

Daniel Heyer was diagnosed with mesothelioma in 2024 at age 43 after decades of exposure to body powders, including ones sold at Target, Walmart and Walgreens, according to the law firm. —Imani Cruzen, Twin Cities, 25 May 2026

Asbestos is a mineral fiber that occurs naturally in rocks and soil, but fibers can lead to various dangerous lung conditions, including mesothelioma, asbestosis, and lung cancer. —Angel Saunders, PEOPLE, 23 May 2026

The mesothelioma diagnosis In 2019, Phillips went to the hospital after six months of experiencing unknown health issues. —Samuel O’Neal 26, Fort Worth Star-Telegram, 26 Feb. 2026

Word History

Etymology

New Latin

First Known Use

circa 1899, in the meaning defined above

Rhymes for mesothelioma

• astrocytoma
• glioblastoma
• leiomyoma
• meningioma
• neuroblastoma
• adenocarcinoma
• choriocarcinoma
• pheochromocytoma
• ambystoma
• atheroma
• carcinoma
• coloboma

Medical Definition

mesothelioma

noun

me·​so·​the·​li·​o·​ma ˌmez-ə-ˌthē-lē-ˈō-mə, ˌmēz-, ˌmēs-, ˌmes- 

plural mesotheliomas also mesotheliomata -mət-ə 

: a tumor derived from mesothelial tissue (as that lining the peritoneum or pleura)