nevocarcinoma
noun
ne·vo·car·ci·no·ma
variants:
or chiefly British naevocarcinoma \ ˌnē-vō-ˌkärs-ᵊn-ˈō-mə 
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plural nevocarcinomas
also nevocarcinomata\ -mət-ə
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Medical Definition of nevocarcinoma
: a carcinoma developing from a nevus