Definition of rauwolfia
1
: any of a genus (Rauvolfia synonym Rauwolfia) of pantropical trees and shrubs of the dogbane family that yield medicinal alkaloids (such as reserpine)
2
: the dried root or an extract from the root of a rauwolfia (especially Rauvolfia serpentina of Asia) used chiefly in the treatment of hypertension
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Merriam-Webster unabridged
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Time Traveler for rauwolfia
The first known use of rauwolfia was in 1739
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