Acanthosis-nigricans meaning

grĭ-kănz′, nĭg rĭ-
An eruption of velvety wartlike growths accompanied by hyperpigmentation in the skin of the axillae, neck, anogenital area, and groin, occurring in a benign form in children, but associated with internal malignancy or reticulosis in adults.
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(pathology) A skin disease, sometimes associated with cancer, exhibiting grey or black wart-like growths near the major joints.
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Origin of acanthosis-nigricans

  • From New Latin acanthus (“spine”) +‎ -osis (“diseased condition”) + Latin nigricans (“blackish”).

    From Wiktionary