Main Entry:

tryp·sin

Pronunciation:

\ˈtrip-sən\

Function:

noun

Etymology:

perhaps from Greek tryein to wear down + English pepsin; akin to Latin terere to rub — more at throw

Date:

1876

: a proteolytic enzyme that is secreted in the pancreatic juice in the form of trypsinogen, is activated in the duodenum, and is most active in a slightly alkaline medium