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Definition of Cerulein
1. n. A fast dyestuff, C20H8O6, made by heating gallein with strong sulphuric acid. It dyes mordanted fabrics green.
Definition of Cerulein
1. a type of dyestuff [n -S] - See also: dyestuff
Medical Definition of Cerulein
1. A decapeptide with hypotensive activity; stimulates smooth muscle and increases digestive secretions; it is similar in structure to cholecystokinin and the gastrins, but much more potent as a stimulant to gallbladder contraction; also stimulates release of insulin. Origin: fr. Hyla caerulea, from which isolated (05 Mar 2000)