haematocrit
Noun
Meaning
a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit
Source: WordNetSynonyms
hematocrit
packed cell volume
blood count
red blood cell count
number of red blood cells in one's body
red blood cells count
level of red blood cells in one's body