tumor

noun

ˈtü-mər How to pronounce tumor (audio)
Definition of tumornext
as in lump
an abnormal mass of tissue the scan showed a small tumor in her abdomen

Synonyms & Similar Words

Relevance

Example Sentences

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.
Recent Examples of tumor Many patients could be helped by new drugs that disable the genes fueling their tumors. — Gina Kolata, New York Times, 30 Sep. 2026 The work was completed shortly before Hesse’s death from a brain tumor at 34 years old and was published on the cover of Artforum that month. — Gabriella Angeleti, ARTnews.com, 29 Sep. 2026 And just last month, Busy Phillips shared that her Prenuvo scan uncovered a grade 2 oligodendroglioma, a type of rare, slow-growing brain tumor. — Helen Carefoot, Flow Space, 29 Sep. 2026 Some clinics may also offer full-body MRIs, which scan for any abnormalities from cancerous tumors to evidence of stroke. — Renée Onque, CNBC, 29 Sep. 2026 See All Example Sentences for tumor
Recent Examples of Synonyms for tumor
  1. lump
  2. neoplasm
  3. cyst
  4. growth
  5. carcinoma
Noun
  • Experts recommend seeing a doctor promptly for any lump, swelling, pain or change in a testicle.
    — Melissa Rudy, FOXNews.com, 29 Sep. 2026
  • Martinez told legislators at a hearing this year how his wife had found a lump in her breast and asked for an appointment with her longtime caregiver at Kaiser to examine it.
    — Melody Petersen, Los Angeles Times, 28 Sep. 2026
Definition of lump
Noun
  • The disease starts with lesions and neoplasms, or precancerous cysts.
    — Emily Kay Votruba, EverydayHealth.com, 16 July 2026
  • Girls and women who were first diagnosed with breast cancer at a later age had the highest incidence of developing subsequent primary neoplasms by 30 years post-initial cancer diagnosis.
    — Tesfaye Negussie, ABC News, 13 Apr. 2026
Definition of neoplasm
Noun
  • Ralph Macchio Ralph Macchio kept his chin up despite suffering a ruptured knee cyst in DWTS season 12.
    — Britt Hayes, Entertainment Weekly, 16 Sep. 2026
  • Hossain and her collaborators have conjured an internalized hellscape marked by sensual photography, gnarly cyst makeup, and suffocating matrimonial rituals involving turmeric and milk — all redolent with upper-class heteronormative rot.
    — Ritesh Mehta, IndieWire, 5 Sep. 2026
Definition of cyst
Noun
  • The rest was onshore coalbed methane, or coal seam gas, and those resources aren’t in growth mode either.
    — Jordan Blum, Fortune, 10 Oct. 2026
  • Once a high-flying tech growth story, the nearly 30-year-old company is now the studio establishment as all the attention and investment has gone to AI bets in public markets.
    — Erik Hayden, HollywoodReporter, 9 Oct. 2026
Definition of growth
Noun
  • An avid runner and golfer fit and trim enough to pass for a man a decade younger, the silver-haired Claire was diagnosed with squamous cell carcinoma in 2015 when what looked like a harmless spot on his lip turned out to be cancerous.
    — Los Angeles Times, Los Angeles Times, 6 Oct. 2026
  • After undergoing surgery to remove the testicle (an orchiectomy), Reeve discovered the mass was embryonal carcinoma.
    — Melissa Rudy, FOXNews.com, 29 Sep. 2026
Definition of carcinoma

Browse Nearby Words

tummy
tumor
tumors
See all Nearby Words

Cite this Entry

“Tumor.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/tumor. Accessed 10 Oct. 2026.

Copy Citation

More from Merriam-Webster on tumor

Britannica.com: Encyclopedia article about tumor

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of Luddite

See Definitions and Examples »

Popular in Grammar & Usage

See More

Do You Need a New Language Peeve?

The Exceptions of '-s' and '-es' Plurals

Merriam-Webster’s Great Big List of Words You Love to Hate

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

The Words of the Week - Oct. 9

Even More Bird Names that Sound Like Insults (and Sometimes Are)
See More

Popular

See More

Do You Need a New Language Peeve?

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
a cup of tea and a golf ball on tee side by side
Quiz: Sounds Like... Choose the word that sounds like it fits the clue...
See All