Definition of dioscorea
1 capitalized : a genus of mostly tropical twining herbs (family Dioscoreaceae) including the yams and having net-veined leaves and small dioecious flowers
2 plural -s : the dried rhizome of a wild yam (Dioscorea paniculata) formerly used in hepatic disorders and rheumatism
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Origin and Etymology of dioscorea
New Latin, irregular from Pedanius Dioscorides, 1st century a.d. Greek physician
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