tryp·sin·o·gen trip-'sin-ə-jən n the inactive substance released by the pancreas into the duodenum to form trypsin
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n.
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tryp·sin·o·gen (trip-sinґo-jən) the inactive proenzyme of trypsin secreted by the pancreas, activated in the duodenum via cleavage by enteropeptidase.Medical dictionary. 2011.