Rhubarb[rū′barb]

Type:Term

Definitions
1. Any plant of the genus Rheum (family Polygonaceae), especially R. rhaponticum, garden rhubarb, and R. officinale or R. palmatum; the last two species or their hybrids, deprived of periderm tissues, dried, and powdered, are used for their astringent, tonic and laxative effects.

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