haematocritPronunciation: /ˈhiːmətə(ʊ)krɪt/ (US hematocrit)Definition of haematocrit noun Physiology the ratio of the volume of red blood cells to the total volume of blood. an instrument for measuring the ratio of the volume of red blood cells to the total volume of blood, typically by centrifugation. Origin: late 19th century: from haemato- 'of blood' + Greek kritēs 'judge'haematocrit in other Oxford dictionaries Definition of haematocrit in the US English dictionary
