cholecystokinin
Pronunciation: kō′lē-sis-tō-kī′nin
Definition: A polypeptide hormone (the human peptide has 33 residues) liberated by the upper intestinal mucosa on contact with gastric contents; stimulates contraction of the gallbladder and secretion of pancreatic juice.
Synonym(s): CCK-pancreozymin, pancreozymin
