"hematocrit" in the noun sense
1. hematocrit, haematocrit, packed cell volume
the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit
2. hematocrit, haematocrit
a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License