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

Examples of tumorous in a Sentence

Recent Examples on the Web 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 The Kansas facility announced on social media that Abi was euthanized Sunday morning due to ongoing problems with a tumorous joint, which zookeepers previously described as irreversible. Vanessa Etienne, PEOPLE.com, 31 May 2022 Although her doctors were able to cut away all the tumorous growth, her care team wanted to be sure no cancerous cells had traveled to other parts of her body. The Editors, Good Housekeeping, 1 Oct. 2021 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tumorous.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1547, in the meaning defined above

Time Traveler
The first known use of tumorous was in 1547

Dictionary Entries Near tumorous

Cite this Entry

“Tumorous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tumorous. Accessed 4 Oct. 2023.

Medical Definition


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