Thesaurus.com
Dictionary.com
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.

At 37, an emergency room visit for severe belly pain showed the culprit: a neuroendocrine tumor in the appendix, the size of an Oreo, but much more troublesome.

From Slate • May 6, 2026

Some tumor types are also more likely to resist treatment and return.

From Science Daily • May 6, 2026

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

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