melanoma
noun
mel·a·no·ma
ˌme-lə-ˈnō-mə 
plural melanomas also melanomata
ˌme-lə-ˈnō-mə-tə
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
The late Starstruck Entertainment executive died in August at the age of 48 after a battle with melanoma.
—
Hannah Dailey, Billboard, 20 Feb. 2026
Clarkson shares daughter River Rose and son Remington with ex-husband Brandon Blackstock, who died in August at age 48 after battling melanoma.
—Mariel Turner, HollywoodReporter, 20 Feb. 2026
The melanoma was discovered when several moles were removed while the Duchess of York was undergoing reconstructive surgery following a mastectomy, USA TODAY previously reported.
—Saman Shafiq, USA Today, 19 Feb. 2026
Treatments that have been effective on melanoma or lung cancer have mostly failed in pancreatic cancer.
—City News Service, San Diego Union-Tribune, 11 Feb. 2026
See All Example Sentences for melanoma
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Hannah Dailey, Billboard, 20 Feb. 2026
Clarkson shares daughter River Rose and son Remington with ex-husband Brandon Blackstock, who died in August at age 48 after battling melanoma.
—Mariel Turner, HollywoodReporter, 20 Feb. 2026
The melanoma was discovered when several moles were removed while the Duchess of York was undergoing reconstructive surgery following a mastectomy, USA TODAY previously reported.
—Saman Shafiq, USA Today, 19 Feb. 2026
Treatments that have been effective on melanoma or lung cancer have mostly failed in pancreatic cancer.
—City News Service, San Diego Union-Tribune, 11 Feb. 2026
See All Example Sentences for melanoma
Cite this Entry
“Melanoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/melanoma. Accessed 22 Feb. 2026.
Copy CitationKids Definition
melanoma
noun
mel·a·no·ma
ˌmel-ə-ˈnō-mə
plural melanomas also melanomata
-mət-ə
: a usually malignant tumor containing dark pigment
Medical Definition
melanoma
noun
mel·a·no·ma
ˌmel-ə-ˈnō-mə
plural melanomas also melanomata
-mət-ə
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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