cholecystokinin
noun
cho·le·cys·to·ki·nin
ˌkō-lə-ˌsi-stə-ˈkī-nən
: a hormone secreted especially by the duodenal mucosa that regulates the emptying of the gallbladder and secretion of enzymes by the pancreas and that has been found in the brain
called also cholecystokinin-pancreozymin, pancreozymin
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Merriam-Webster unabridged
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