Dictionary![]() ![]() tryp•sin•o•genPronunciation: (trip-sin'u-jun, -jen"), [key] —n. Biochem. a precursor of trypsin that is secreted by the pancreas and is activated to trypsin in the small intestine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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