hematocrit
1. the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit • Syn: haematocrit, packed cell volume • Hypernyms: ratio 2. a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood • Syn: haematocrit • Hypernyms: measuring instrument, measuring system, measuring device, centrifuge, extractor, separator
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