Medical Dictionary
rhubarb
noun rhu·barb \ˈrü-ˌbärb\
Medical Definition of RHUBARB
1
: any of several plants of the genus Rheum having large leaves with thick succulent petioles often used as food
2
: the dried rhizome and roots of any of several rhubarbs (especially Rheum officinale and R. palmatum) grown in China and Tibet and used as a purgative and stomachic
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