chiaroscuro (plural chiaroscuros or chiaroscuri) (art) An artistic technique developed during the Renaissance, referring to the use of exaggerated light contrasts in order to create the illusion of volume.
Psoriasis Psoriasis is a long-term skin condition that may cause large plaques of red, raised skin, flakes of dry skin, and skin scales....learn more Â».
The skin cells pile up on the surface of the skin, causing patches of psoriasis to appear. Psoriasis may look contagious, but it's not. You cannot get psoriasis from touching someone who has it. To get psoriasis, a person must inherit the genes that cause it.