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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.

Instead, it is a personalized therapy that uses a patient’s own tumor and blood samples to teach the immune system to recognize and destroy their specific cancer cells.

From Barron's • May 1, 2026

He had a brain tumor removed in 2021 and underwent months of therapy.

From Los Angeles Times • Apr. 23, 2026

More than 90% of pancreatic tumors carry a mutation called RAS, which accelerates tumor growth and historically has been nearly impossible to treat with drugs.

From The Wall Street Journal • Apr. 21, 2026

To reach these conclusions, the scientists analyzed tumor samples from more than 200 melanoma patients in the U.S.,

From Science Daily • Apr. 21, 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




Vocabulary lists containing tumor