- a resin that is one of the purgative principles of jalap.
Origin of jalapin
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Examples from the Web for jalapin
The chief constituents of jalap resin are two glucosides—convolvulin and jalapin—sugar, starch and gum.
Jalapin or scammonin, C34H56O16, occurs in scammony; it hydrolyses to glucose and jalapinolic acid.