(Physiology)the ratio of the volume of red blood cells to the total volume of blood (生理)血细胞比容,血细胞和血浆的容积比 ■an instrument for measuring this, typically by centrifugation (测定血细胞和血浆容积比的)血球容量计
语源
late 19th cent.: from haemato- 'of blood' + Greek kritēs 'judge'