1. secretin

noun. a gastrointestinal hormone that stimulates the secretion of water and bicarbonate from the pancreas and bile ducts whenever the stomach empties too much acid into the small intestine.


  • GI hormones

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Example sentences of the word secretin

1. Noun, singular or mass
The hormones secretin and cholecystokinin travel through the blood to the pancreas, where they trigger the secretion of bicarbonate.