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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.

When scientists blocked this communication in laboratory models, tumor growth dropped significantly.

From Science Daily • Apr. 5, 2026

Because these molecules are much smaller than antibodies, they can move more easily through tumor tissue.

From Science Daily • Apr. 2, 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

Although scientists understand many of the mutations that lead to tumor formation, no single genetic change explains why some cells break away and migrate while others remain in place.

From Science Daily • Mar. 21, 2026

It grew from a sliver of her tumor, which was a cluster of cells.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot