Medical Definition of excoriation. 1: the act of abrading or wearing off the skin chafing and excoriation of the skin.
malaria. noun. 1  An infectious disease characterized by cycles of chills, fever, and sweating, caused by a protozoan of the genus Plasmodium in red blood cells, which is transmitted to humans by the bite of an infected female anopheles mosquito.
Malaria is a life-threatening disease thatâs typically transmitted through the bite of an infected Anopheles mosquito. Malaria is usually found in tropical and subtropical climates where the parasites that cause it live. Congenital malaria occurs when a mother with malaria passes on the disease to her baby at birth.