English Reference

Word

mesothelioma

Phoneticsmesothe·lioma

/ˌmɛsəˌθiɫiˈoʊmə/

Definition

n. a rare and serious type of cancer that grows in the thin layer of tissue covering your lungs or heart. It is usually caused by breathing in tiny pieces of asbestos over a long time.

n. a malignant tumor of the mesothelium, typically affecting the pleura or peritoneum. Almost exclusively caused by the inhalation of asbestos fibers, it has a long latency period before symptoms manifest.

Examples

“The doctor explained that mesothelioma is a rare form of lung cancer.”

“Because mesothelioma develops decades after initial exposure, many patients were unaware they had worked in environments with high asbestos levels.”

“The aggressive nature of mesothelioma often limits treatment options to palliative care, as the cancer tends to spread rapidly through the thin layers of tissue surrounding the thoracic cavity.”

Examples

simple

“The doctor explained that mesothelioma is a rare form of lung cancer.”

contextual

“Because mesothelioma develops decades after initial exposure, many patients were unaware they had worked in environments with high asbestos levels.”

complex

“The aggressive nature of mesothelioma often limits treatment options to palliative care, as the cancer tends to spread rapidly through the thin layers of tissue surrounding the thoracic cavity.”

Real-World Examples

“Asbestos, a mineral used in the construction of the Twin Towers, is also a known carcinogen, linked to scarring of the lungs and mesothelioma, a type of cancer.”
Al Jazeera · 8 Sept 2026
“The mum was 46 when she died from mesothelioma, an incurable cancer linked to asbestos exposure.”
BBC News · 24 Aug 2026

Etymology

From mesothelium + -oma.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Level
C2 · Proficiency
Frequency
Occasional
Updated

Scan code

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English Reference