Main Entry: rhu·barb

Pronunciation: \ˈrü-ˌbärb\

Function: noun

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