1) Disease of the skin 2) Skin condition 3) Skin disease 4) Skin disorder 5) Skin problem 
Acanthosis is diffuse epidermal hyperplasia (thickening of the skin). It implies increased thickness of the Malpighian layer (stratum basale and stratum spinosum). ...
An increase in the thickness of the stratum spinosum of the epidermis. ... Synonym: hyperacanthosis. ... Origin: acantho-+ G. -osis, condition ... (05 Mar 2000) ... 
(ak″an-tho´sis) diffuse hypertrophy or thickening of the prickle cell layer of the skin. adj., acanthot´ic., adj. acanthosis nigricans diffuse acanthosis with gray, brown, or black pigmentation, chiefly in the armpits and other body folds. In adults, one form (mali...
Type: Term Pronunciation: ak-an-thō′sis Definitions: 1. An increase in the thickness of the stratum spinosum of the epidermis.
Involves thickening of the skin, which results in papules and plaques forming. Commonly treated by a dermatologist.
[n] - an abnormal but benign thickening of the prickle-cell layer of the skin (as in psoriasis)
noun an abnormal but benign thickening of the prickle-cell layer of the skin (as in psoriasis)
Thickening of the epidermis resulting in the formation of papules and plaques.
Involves thickening of the skin, which results in papules and plaques forming. Commonly treated by a dermatologist.