- keratosis - a skin condition marked by an overgrowth of layers of horny skin
--1 is a kind of skin disease, disease of the skin, skin disorder, skin problem, skin condition
--1 has particulars:wart, verruca; actinic keratosis; keratosis blennorrhagica, keratoderma blennorrhagica; keratosis follicularis, Darier's disease; keratosis pilaris; seborrheic keratosis