An ENZYME produced by the PANCREAS which digests protein. It is used as an aid in operations for removal of a cataract (see ZONULOLYSIS), and also by inhalation to loosen and liquefy secretions in the windpipe and bronchi.
n. a protein-digesting enzyme (see peptidase). It is secreted by the pancreas in an inactive form, chymotrypsinogen, that is converted into chymotrypsin in the duodenum by the action of *trypsin.
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