Leukoreduced refers to a medical procedure in which the white blood cells are reduced to a certain degree. This procedure is commonly used in the context of blood transfusions, as it can reduce the risk of transfusion-related illnesses. Some synonyms for leukoreduced include leukocyte-depleted, leukocyte-reduced, white cell-reduced, white cell-depleted, and neutropenic. Each of these terms refers to the same process in which white blood cells are significantly reduced in the blood or product being transfused in order to decrease the chances of adverse reactions stemming from the transfusion. These terms are often used interchangeably in medical contexts.