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Rheum

2 ENTRIES FOUND:
  1. Rheum (noun)
  2. rheum (noun)

Rhe·um

noun \ˈrē-əm\

Definition of RHEUM

: a genus of Asian herbs (family Polygonaceae) that have large leaves, small flowers, and a 3-winged fruit and that include the rhubarbs (as the Chinese rhubarb, R. officinale, and rhapontic, R. rhaponticum)