Learn how to say Haematocrit correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word haematocrit:
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.
late 19th century: from haemato- ‘of blood’ + Greek kritēs ‘judge’