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.
Leukopenia is a decrease in the total number of white blood cells. Leukocyte is another name for white blood cell. They are made in the bone marrow and are found in the blood and lymphatic tissues. Leukocytes play a key part in defending the body against viruses and bacteria, which can cause infection. Neutropenia is a low neutrophil count.