tumor

noun

tu·mor | \ ˈtü-mər

, ˈtyü- \

Definition of tumor

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

Other Words from tumor Synonyms More Example Sentences Phrases Containing tumor Learn More About tumor

Other Words from tumor

tumoral \ ˈtü-mə-rəl

, ˈtyü- \ adjective

tumorlike \ ˈtü-mər-ˌlīk

, ˈtyü- \ adjective

Examples of tumor in a Sentence

the scan showed a small tumor in her abdomen

Recent Examples on the Web The ultrasound revealed the source of her pain: a 7-centimeter tumor filled with fluid on Boughton’s left ovary. — Lauren Sausser, NBC News, 21 May 2022 More:Black women are missing from breast cancer tumor data. — Nada Hassanein, USA TODAY, 19 May 2022 After migraine medications didn’t help, multiple tests were done, revealing a tumor. — Shelby Dermer, The Enquirer, 17 May 2022 DeShields’s daughter, Diamond DeShields — a 6-foot-1-inch guard — won the WNBA championship as a member of the Chicago Sky last October, just 21 months after having a tumor removed from her spinal cord. — Globe Staff, BostonGlobe.com, 14 May 2022 Out of that, there were around 43,000 lung cancer events and 3,700 brain tumor events. — Anuradha Varanasi, Forbes, 13 May 2022 For example, if your symptoms are unusual or suddenly become severe, your doctor may order an MRI or CT scan of your brain to make sure they aren’t being caused by a tumor or bleeding in the brain. — Abigail Libers, SELF, 4 May 2022 The company’s products are already helping doctors figure out if colon cancer patients still have any tumor left after treatment, whether a cancer has returned, and what treatments make most sense for those with advanced disease. — Jonathan Wosen, STAT, 24 Apr. 2022 Unfortunately, vets recently caught another tumor — this one cancerous — and Spencer began chemotherapy. — Caitlin O'kane, CBS News, 20 Apr. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tumor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Learn More About tumor

Dictionary Entries Near tumor

tummy

tumor

tumorigenic

Statistics for tumor

Last Updated

26 May 2022

Cite this Entry

“Tumor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tumor. Accessed 28 May. 2022.

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More Definitions for tumor

tumor

noun

tu·mor | \ ˈtü-mər

, ˈtyü- \

Kids Definition of tumor

: an abnormal growth of body tissue

tumor

noun

tu·mor

variants: or chiefly British tumour \ ˈt(y)ü-mər

Medical Definition of tumor

: 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