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saponin 皂草苷; 皂素; 皂甙 皂草□; 皂素; 皂□ saponin n 1: any of various plant glucosides that form soapy lathers when mixed and agitated with water; used in detergents and foaming agents and emulsifiersSaponin \ Sap" o* nin\, n. [ L. sapo, - onis soap: cf. F. saponine.] ( Chem.) A poisonous glucoside found in many plants, as in the root of soapwort ({ Saponaria officinalis}), in the bark of soap bark ({ Quillaja saponaria}), etc. It is extracted as a white amorphous powder, which produces a soapy lather in solution, and produces a local anaesthesia. It is used as a detergent and for emulsifying oils. Formerly called also { struthiin}, { quillaiin}, { senegin}, { polygalic acid}, etc. By extension, any one of a group of related bodies of which saponin proper is the type. [ 1913 Webster PJC]
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