bom·​be·​sin ˈbäm-bə-sin How to pronounce bombesin (audio)
: a polypeptide that is found in the brain and gastrointestinal tract and has been shown experimentally to cause the secretion of various substances (as gastrin and cholecystokinin) and to inhibit intestinal motility

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Cite this Entry

“Bombesin.” Medical Dictionary, Merriam-Webster, Accessed 25 Jun. 2024.

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