I. rheum ˈrüm, ˈru̇m noun
( -s )
Etymology: Middle English reume, from Middle French, from Latin rheuma, from Greek — more at rheumatism
1.
a. : a watery discharge from the mucous membranes especially of the eyes or nose
b. : a condition marked by such discharge (as a cold or catarrh)
2. archaic : tears
indisposed by a very great rheum — John Evelyn
II. rhe·um ˈrēəm noun
Usage: capitalized
Etymology: New Latin, from Greek rhēon rhubarb — more at rhubarb
: a genus of Asiatic herbs (family Polygonaceae) with large leaves, loose stipular sheaths, and small flowers in ample paniculate racemes, the perianth 6-parted, the fruit 3-winged — see rhubarb