melanoma


mel·a·no·ma

noun \ˌme-lə-ˈnō-mə\

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

plural mel·a·no·mas also mel·a·no·ma·ta \-mə-tə\

Full 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

Origin of MELANOMA

New Latin
First Known Use: 1838

mel·a·no·ma

noun \ˌmel-ə-ˈnō-mə\   (Medical Dictionary)
plural mel·a·no·mas also mel·a·no·ma·ta \-mət-ə\

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

melanoma

noun    (Concise Encyclopedia)

Dark-coloured malignant tumour of skin cells that produce the protective skin-darkening pigment melanin. Melanomas are prone to metastasize (see cancer) and are associated with the highest death rate of any skin cancer. Removal, together with a collar of surrounding healthy skin, cures melanoma if done early. A common cause of melanoma is skin damage from sunlight. It is very rare in persons with dark skin.

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