2 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Saponin \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}), in the bark of soap bark
({Quillaia}), etc It is extracted as a white amorphous
powder, which occasions a soapy lather in solution, and
produces a local an[ae]sthesia. 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
From WordNet r 1.6 [wn]:
saponin
n : any of various plant glucosides that form soapy lathers when
mixed and agitated with water; used in detergents and
foaming agents and emulsifiers
more about saponin
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