1
: an abnormal benign or malignant new growth of tissue that possesses no physiological function and arises from uncontrolled usually rapid cellular proliferation
called also neoplasm
2
: a swollen or distended part
… houses that bulged with the tumors and warts of … ornamental architecture …—
W. A. White
W. A. White
Examples of tumor in a Sentence
the scan showed a small tumor in her abdomen
Recent Examples on the Web
After busting Parker’s chops for giving the kidnappers a name from Spies Like Us, Dr. Logan confesses that she’s never done surgery on a tumor as large as Savina’s without Harper.
—Sara Netzley, EW.com, 23 Apr. 2024
Symptoms vary depending on the location of the tumor, but can include headaches, blurred vision, vomiting, loss of appetite, and changes in mood and ability to think and learn.
—Jennifer Hassan, Washington Post, 18 Apr. 2024
Treatment includes surgery, radiation, chemotherapy or different forms of therapy such as electric field therapy, which uses electrical fields to target cells in the tumor while not hurting normal cells, according to WebMD.
—Minyvonne Burke, NBC News, 17 Apr. 2024
Her next doctor’s appointment to examine the tumor on April 18.
—Wendy Grossman Kantor, Peoplemag, 17 Apr. 2024
The tumor had spread through the thyroid gland, onto the carotid artery and into the tracheal rings.
—Steve Lopez, Los Angeles Times, 13 Apr. 2024
The method would involve a version of the bacterium that can’t cause disease but can still invade the colorectal tumor.
—Lauryn Higgins, Health, 9 Apr. 2024
And some molecular studies suggest that tumors in early-onset colorectal cancers do have different mutations driving the cancer compared with tumors in older adults.
—Knvul Sheikh, New York Times, 27 Mar. 2024
GenX chemicals have been shown in animal studies to damage the liver, kidneys and immune system, as well as liver and pancreatic tumors.
—Aria Bendix, NBC News, 10 Apr. 2024
Sara Netzley, EW.com, 23 Apr. 2024
Symptoms vary depending on the location of the tumor, but can include headaches, blurred vision, vomiting, loss of appetite, and changes in mood and ability to think and learn.
—Jennifer Hassan, Washington Post, 18 Apr. 2024
Treatment includes surgery, radiation, chemotherapy or different forms of therapy such as electric field therapy, which uses electrical fields to target cells in the tumor while not hurting normal cells, according to WebMD.
—Minyvonne Burke, NBC News, 17 Apr. 2024
Her next doctor’s appointment to examine the tumor on April 18.
—Wendy Grossman Kantor, Peoplemag, 17 Apr. 2024
The tumor had spread through the thyroid gland, onto the carotid artery and into the tracheal rings.
—Steve Lopez, Los Angeles Times, 13 Apr. 2024
The method would involve a version of the bacterium that can’t cause disease but can still invade the colorectal tumor.
—Lauryn Higgins, Health, 9 Apr. 2024
And some molecular studies suggest that tumors in early-onset colorectal cancers do have different mutations driving the cancer compared with tumors in older adults.
—Knvul Sheikh, New York Times, 27 Mar. 2024
GenX chemicals have been shown in animal studies to damage the liver, kidneys and immune system, as well as liver and pancreatic tumors.
—Aria Bendix, NBC News, 10 Apr. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tumor.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near tumor
Cite this Entry
“Tumor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tumor. Accessed 26 Apr. 2024.
Copy CitationKids Definition
tumor
noun
tu·mor
ˈt(y)ü-mər 
: an abnormal mass of tissue that arises from normal tissue cells and serves no useful purpose in the body
tumorous
adjective
ˈt(y)üm-(ə-)rəs
Medical Definition
tumor
noun
tu·mor
variants
or chiefly British tumour
: an abnormal benign or malignant new growth of tissue that possesses no physiological function and arises from uncontrolled usually rapid cellular proliferation see cancer sense 1, carcinoma, sarcoma
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