What are examples of landforms? A: The four main types of landforms are mountains, plateaus, plains and hills. A landform is defined as any natural feature on the Earth's surface, which incl... Full Answer >
Definition of leukopenia. : a condition in which the number of white blood cells circulating in the blood is abnormally low.
Leucopenia decreases a person s ability to fight infections and diseases as white blood cells provide natural defense against infections. Neutropenia is a subtype of leucopenia and refers to a decrease in the number of circulating neutrophil granulocytes.