Normally the most abundant type of white blood cell in healthy adults
Damage to cells in the body caused by free radicals; free radicals, groups of atoms containing an oxygen atom and a free electron, can damage and sometimes destroy cells.
Decreased number of neutrophils, a type of white blood cell
bone marrow disease that is characterized by the production of large numbers of an immature granulocyte (a neutrophil -- the most common, basophil, or eosinophil) that replace other normal cells in the marrow.