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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.

Cells that survive after gaining extra DNA may continue multiplying and potentially contribute to tumor recurrence.

From Science Daily • May 25, 2026

A suite of new studies suggest drugs such as Ozempic and Zepbound might slow tumor progression and improve survival, but more research is needed to confirm the findings.

From The Wall Street Journal • May 22, 2026

Scientists have discovered that a powerful cancer-linked protein does more than fuel tumor growth.

From Science Daily • May 17, 2026

MYC-driven cancers appear able to rapidly repair the DNA damage caused by treatment, allowing them to endure therapies that would normally destroy tumor cells.

From Science Daily • May 17, 2026

The lady who runs the petting zoo, Denise, told my parents the tumor can’t be removed because he’s too old and any surgery could kill him.

From "Insignificant Events in the Life of a Cactus" by Dusti Bowling




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