tumor
Americannoun
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a swollen part; swelling; protuberance.
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an uncontrolled, abnormal, circumscribed growth of cells in any animal or plant tissue; neoplasm.
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Archaic.
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inflated pride; haughtiness.
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pompous language; bombast.
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Other Word Forms
- antitumor adjective
- antitumoral adjective
- nontumorous adjective
- tumoral adjective
- tumorlike adjective
- tumorous adjective
Etymology
Origin of tumor
First recorded in 1535–45; from Latin: “a swelling, swollen state,” equivalent to tum(ēre) “to swell” + -or noun suffix ( -or 1 )
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.
The material activates two separate chemical reactions once inside a tumor cell, overwhelming it with oxidative stress while leaving surrounding healthy tissue unharmed.
From Science Daily
In cancer treatment, for instance, caffebodies could be built into T cells so physicians can decide when, where, and how strongly the immune system attacks tumors.
From Science Daily
They help control how genetic instructions in DNA are converted into proteins, assist in clearing away cellular waste that could otherwise become toxic, and can even play a role in suppressing tumor growth.
From Science Daily
According to Loeb, this is the first Western study to measure microplastic levels in prostate tumors and compare them directly with levels in noncancerous prostate tissue.
From Science Daily
One lead candidate is a prostate cancer drug called VIR-5500 that works by directing the body’s own immune cells to destroy tumor cells.
From Barron's
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
