home / medterms medical dictionary a-z list / protozoa definition Medical Definition of Protozoa Protozoa: A parasitic single-celled organism that can divide only within a host organism. For example, malaria is caused by the protozoa Plasmodium. What Kind of Doctor Do I Need?
Ilocos Region. The Ilocos Region is a region on the island of Luzon in the Philippines. Ilocos Region occupies the narrow plain between the Cordillera Central mountain range and the South China Sea. Ilocos Region Photos.
The Appalachian Region. The Appalachian Region, as defined in ARC's authorizing legislation, is a 205,000-square-mile region that follows the spine of the Appalachian Mountains from southern New York to northern Mississippi.he Appalachian Region. The Appalachian Region, as defined in ARC's authorizing legislation, is a 205,000-square-mile region that follows the spine of the Appalachian Mountains from southern New York to northern Mississippi.