mel·​a·​no·​ma | \ ˌme-lə-ˈnō-mə How to pronounce melanoma (audio) \
plural melanomas also melanomata\ ˌme-​lə-​ˈnō-​mə-​tə How to pronounce melanomata (audio) \

Definition of melanoma

1 : a tumor containing dark pigment
2 : a highly malignant tumor that starts in melanocytes of normal skin or moles and metastasizes rapidly and widely

Examples of melanoma in a Sentence

Recent Examples on the Web

And though there is strong evidence that sunscreen use prevents skin cancer, experts disagree whether the available data shows that current sunscreen formulas and application methods protect against melanoma specifically. Kim Tingley, New York Times, "When You Wear Sunscreen, You’re Taking Part in a Safety Study," 23 July 2019 The risk for melanoma is increasing in people under 40, particularly in women, and can occur just about anywhere on the body, usually in the form of new, unusual growth or changes to an existing one. Claudia Harmata,, "Summer House’s New Mom Ashley Wirkus Reveals She Had Skin Cancer in Candid Post," 17 July 2019 Array’s drugs, Braftovi and Mektovi, are already approved in the U.S. for use in advanced melanoma. Drew Armstrong,, "Pfizer expands in cancer care with $10.6 billion deal for Array," 17 June 2019 Three days after a procedure to remove a melanoma from his right ear, A’s outfielder Stephen Piscotty is expected to be available off the bench Sunday during the team’s game against the Mariners. Susan Slusser,, "Stephen Piscotty likely to be available off A’s bench," 16 June 2019 The good news is that when detected early, melanomas are almost always cured by surgical removal. Madelyn Fernstrom, NBC News, "Skin moles: What to check for and what warrants a doctor visit," 22 June 2018 Its lead drug combination, Braftovi and Mektovi, has already been approved to treat metastatic melanoma, and its market seems likely to expand. Charley Grant, WSJ, "Growth Is Worth Paying Up for at Pfizer," 17 June 2019 ImmuneFx now is being tested in clinical trials on humans with cutaneous melanoma, one of the most common types of skin cancer. Justine Griffin,, "A vaccine for cancer? Tampa company is working on it," 21 Aug. 2019 Two years ago, the North Park resident was diagnosed with melanoma, which started with a sore on her toe. Pam Kragen, San Diego Union-Tribune, "‘Friendly Visitor’ program matches volunteers with seniors for lasting friendships," 19 Aug. 2019

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

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First Known Use of melanoma

1838, in the meaning defined at sense 1

History and Etymology for melanoma

melan- (in melanosis, melanotic) + -oma

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Statistics for melanoma

Last Updated

8 Oct 2019

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Time Traveler for melanoma

The first known use of melanoma was in 1838

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English Language Learners Definition of melanoma

medical : a type of cancer or tumor that begins as a dark spot or area on the skin


mel·​a·​no·​ma | \ ˌmel-ə-ˈnō-mə How to pronounce melanoma (audio) \
plural melanomas also melanomata\ -​mət-​ə How to pronounce melanomata (audio) \

Medical Definition of melanoma

1 : a benign or malignant skin tumor containing dark pigment
2 : a tumor of high malignancy that starts in melanocytes of normal skin or moles and metastasizes rapidly and widely

called also malignant melanoma, melanocarcinoma, melanoepithelioma, melanosarcoma

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More from Merriam-Webster on melanoma

Rhyming Dictionary: Words that rhyme with melanoma

Spanish Central: Translation of melanoma

Nglish: Translation of melanoma for Spanish Speakers

Britannica English: Translation of melanoma for Arabic Speakers Encyclopedia article about melanoma

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