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.
Knowledge center. Malaria is a life-threatening blood disease caused by parasites and is transmitted to humans by the Anopheles mosquito. Once bitten, parasites multiply in the host's liver before infecting and destroying red blood cells.The disease can be controlled and treated if diagnosed early on.nowledge center. Malaria is a life-threatening blood disease caused by parasites and is transmitted to humans by the Anopheles mosquito. Once bitten, parasites multiply in the host's liver before infecting and destroying red blood cells.