Original photographs by Ansel Adams are defined as photographs printed by Ansel Adams from the negatives he made (photographed and developed). Most will range between $4,000 and $70,000.
Keratosis is the term for any condition that is a benign overgrowth  and thickening of the epidermis.
Noun. 1. epidermis-the outer layer of the skin covering the exterior body surface of vertebrates. cuticle. cutis, skin, tegument-a natural protective body covering and site of the sense of touch; your skin is the largest organ of your body.tratum granulosum-the layer of epidermis just under the stratum corneum or (on the palms and soles) just under the stratum lucidum; contains cells (with visible granules) that die and move to the surface. malpighian layer, rete Malpighii, stratum basale, stratum germinativum-the innermost layer of the epidermis.