Rheum /(rē"ŭm)/

Rhe·um

Rheum

n.
  1. A genus of plants. See Rhubarb. (Bot.)

Rheum

n.
  1. A serous or mucous discharge, especially one from the eves or nose. (Med.)
    I have a rheum in mine eyes too.

Phrases & Compounds
Salt rheum
See Salt rheum, in the Vocabulary.