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Definitions

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.

In this case, the virus has been modified to replicate only inside tumor cells, causing them to burst, while simultaneously triggering a more aggressive immune response from the body’s own white blood cells.

From Barron's • Apr. 10, 2026

The Foster City, Calif., company said the deal also includes TUB-030, an ADC that has shown promising initial clinical data across various solid tumor types.

From The Wall Street Journal • Apr. 7, 2026

In samples from patients, 10 of 13 individuals with pancreatic cancer showed higher levels of KLF5 activity in at least one metastatic tumor compared with their original tumor.

From Science Daily • Apr. 7, 2026

Removal of the tumor was scheduled for two months later, so Duong went home to his family for the weekend.

From Los Angeles Times • Mar. 30, 2026

A white-hot lump of anger expanded in her chest—a tumor of worry and bitterness that she’d been carrying around since last autumn.

From "The Mark of Athena" by Rick Riordan




Vocabulary lists containing tumor