tumorous

adjective

tu·​mor·​ous ˈtü-mə-rəs How to pronounce tumorous (audio)
ˈtyü-;
ˈtüm-rəs,
ˈtyüm-
: of, relating to, or resembling a tumor
tumorous cells
a tumorous growth

Examples of tumorous in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Gut bacteria can ferment fiber, producing a molecule known as butyrate, a short-chain fatty acid that is believed to have anti-cancer properties, including inhibiting tumorous cell growth and promoting death in cancerous cells, Fasulo said. Akshay Syal, NBC news, 31 May 2025 There’s a tumorous, oozing, bedridden young man — a rotten, the locals call him — dribbling fluids onto the floor of his family’s crude shack. Amy Nicholson, Los Angeles Times, 6 Oct. 2023 What about a single tumorous cell? Elizabeth Preston, Discover Magazine, 27 Aug. 2011 There isn't a tumorous switch cluster or a glowing electro-screen to be found. Csaba Csere, Car and Driver, 1 Mar. 2023 A year later, just as vaccine research was gaining momentum, researchers detected a new transmissible facial cancer in devils—a genetically distinct cell line that also causes tumorous boils across the face. Katie Jewett, Discover Magazine, 16 Aug. 2018 The tumorous ulcer appeared in the armpit of the same arm in which the man had received the injection, and then regressed spontaneously. Roxanne Khamsi, The Atlantic, 24 Sep. 2022 In January, Peña sought his release to receive medical treatment for tumorous growths. Globe Staff, BostonGlobe.com, 18 July 2022 Pena in January sought his release to receive medical treatment for tumorous growths. Globe Staff, BostonGlobe.com, 11 July 2022

Word History

First Known Use

1547, in the meaning defined above

Time Traveler
The first known use of tumorous was in 1547

Cite this Entry

“Tumorous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tumorous. Accessed 17 Jun. 2025.

Medical Definition

tumorous

adjective
tu·​mor·​ous ˈt(y)üm-(ə-)rəs How to pronounce tumorous (audio)
: of, relating to, or resembling a tumor
a tumorous disease
Last Updated: - Updated example sentences
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