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tumor

[too-mer, tyoo-] / ˈtu mər, ˈtyu- /
NOUN
abnormal growth in animate being
Synonyms


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.

Like Keytruda, they release the immune system to attack a tumor.

From The Wall Street Journal • Jun. 6, 2026

The approach involves collecting a patient's own immune cells, genetically modifying them to recognize cancer, and then returning them to the body to seek out and destroy tumor cells.

From Science Daily • Jun. 2, 2026

Researchers found evidence that oleic acid may encourage tumor growth in pancreatic cancer, a result that surprised the team because of the fatty acid's long-standing reputation as a heart-healthy dietary fat.

From Science Daily • Jun. 2, 2026

A surgeon from the University of Texas MD Anderson Cancer Center removed her brain tumor and lined the cavity with the implants in late November 2022.

From The Wall Street Journal • May 30, 2026

My mother looked down on me for the first time and saw the large tumor that had robbed her of a baby’s perfection.

From "Ugly" by Robert Hoge




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