Medical Definition of Neutrophil. Neutrophil: A type of white blood cell, a granulocyte that is filled with microscopic granules, little sacs containing enzymes that digest microorganisms. Also known as polymorphonuclear leukocyte or poly.
Definition of Neutropenia. Neutropenia: Not enough neutrophils, neutrophils being a type of white blood cell (specifically a form of granulocyte) filled with neutrally-staining granules, tiny sacs of enzymes that help the cell to kill and digest microorganisms it has engulfed by phagocytosis.
Neutrophilia Definition. Neutrophilia is a medical condition that involves the increase of neutrophil in the blood or serum. This is considered as the most common form of leukocytosis, a condition that involves the increase of leukocytes (white blood cells).The neutrophils are responsible in killing or assistance of fighting off the foreign materials found in the body such as bacteria and fungi.his is considered as the most common form of leukocytosis, a condition that involves the increase of leukocytes (white blood cells). The neutrophils are responsible in killing or assistance of fighting off the foreign materials found in the body such as bacteria and fungi.