Crossword clue: a measuring instrument to determine the relative amounts of corpuscles and plasma in the blood

The most common answer is haematocrit (11 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

haematocrit 11 letters wn-def

a measuring instrument to determine the relative amounts of corpuscles and plasma in the blood

hematocrit 10 letters wn-def

a measuring instrument to determine the relative amounts of corpuscles and plasma in the blood