itch [AS, giccan] , 1. v., to feel a sensation, usually on the skin, that makes one want to scratch. 2. n., a tingling, annoying sensation on an area of the skin that makes one want to scratch it, caused in some people, for example, by rhus dermatitis, a mosquito bite, or an allergic reaction. 3. n., the pruritic condition of the skin caused by infestation with the parasitic mite Sarcoptes scabiei. See also pruritus. −itchy, adj.
