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
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Potential adverse effects identified by the FDA in this 14-item list include heart toxicity, infections, pancreatitis, increased or decreased insulin sensitivity, serious immunoresponses, melanoma and death.
—
Mary Walrath-Holdridge, USA Today, 1 Apr. 2026
Australians have a complicated relationship with the Sun, suffering the world’s highest melanoma rates even with a functioning ozone layer.
—Big Think, 31 Mar. 2026
Over the years, Vitale has had several diagnoses including melanoma and lymphoma, all while keeping his fans abreast of his health status.
—Michael Gallagher, MSNBC Newsweek, 31 Mar. 2026
Clinical trials are showing success against pancreatic cancer, melanoma, and rare genetic disorders that were previously untreatable.
—Jeff Coller, Fortune, 26 Mar. 2026
See All Example Sentences for melanoma
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Mary Walrath-Holdridge, USA Today, 1 Apr. 2026
Australians have a complicated relationship with the Sun, suffering the world’s highest melanoma rates even with a functioning ozone layer.
—Big Think, 31 Mar. 2026
Over the years, Vitale has had several diagnoses including melanoma and lymphoma, all while keeping his fans abreast of his health status.
—Michael Gallagher, MSNBC Newsweek, 31 Mar. 2026
Clinical trials are showing success against pancreatic cancer, melanoma, and rare genetic disorders that were previously untreatable.
—Jeff Coller, Fortune, 26 Mar. 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 7 Apr. 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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