haematocrit
/ˈhiːmətəʊkrɪt/( <美> hematocrit /ˈhemətəʊkrɪt/)
noun
1- 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。
1.1
- 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。
词源
late 19th cent.: from HAEMATO- 'of blood' + Greek kritēs 'judge'.