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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.

An advanced tumor, Ms. Khamsi says, “might harbor thousands upon thousands of mutations,” including some that may render the cancer less susceptible to whatever medication an oncologist plans to use.

From The Wall Street Journal • Apr. 20, 2026

Next, the FDA quibbles that patients who had every tumor injected had higher remission rates than those who had only some.

From The Wall Street Journal • Apr. 14, 2026

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

In mouse studies, adding zeaxanthin to the diet slowed tumor growth.

From Science Daily • Apr. 10, 2026

Kevin was placed in a Children’s Hospital to undergo a brain biopsy for a misdiagnosed tumor.

From "The Freedom Writers Diary" by The Freedom Writers




Vocabulary lists containing tumor