keratosis nigricans(n = noun.state) acanthosis nigricans - a skin disease characterized by dark wartlike patches in the body folds; can be benign or malignant;
is a kind of disease of the skin, skin disease, skin disorder

acanthosis nigricans, actinic keratosis, hirundo nigricans, hypentelium nigricans, keratosis, keratosis blennorrhagica, keratosis follicularis, keratosis pilaris, makaira nigricans, rhizopus nigricans, seborrheic keratosis