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.
Neutropenia is a blood condition, a granulocyte disorder, that characterized by a deficiency of neutrophils, a type of white blood cell that defends the body against bacterial and fungal infections.Granulocytes are a category of white blood cells. They are made in bone marrow.nowledge center. Neutropenia is a blood condition, a granulocyte disorder, that characterized by a deficiency of neutrophils, a type of white blood cell that defends the body against bacterial and fungal infections. Granulocytes are a category of white blood cells.