noun. a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood.
noun. the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit.
1. Noun, singular or mass Your heart rate may not return to normal for two months, which is approximately the amount of time it takes for hematocrit and hemoglobin to return to normal.
