Medical Dictionary

Rhamnus

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noun Rham·nus \ˈram-nəs\

Medical Definition of Rhamnus

  1. :  a genus (family rhamnaceae) of trees and shrubs that have small flowers and a fruit which is a drupe and that comprise the buckthorns (as cascara buckthorn, R. purshiana) of which some yield pigments or purgatives (as cascara sagrada)


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a dividing ridge between drainage areas

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