Crossword clue: the antecedent of trypsin, a substance which is contained in the cells of the pancreas and gives rise to the trypsin.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
inactive precursor of trypsin; a substance secreted by the pancreas and converted to active trypsin by enterokinase in t