Medical Dictionary
acanthosis nigricans
noun acanthosis ni·gri·cans \-ˈnig-rə-ˌkanz, -ˈnī-grə-\
Medical Definition of ACANTHOSIS NIGRICANS
: a skin disease characterized by gray-black warty patches usually situated in the axilla or groin or on elbows or knees and sometimes associated with cancer of abdominal viscera
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