buckthorn

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noun buck·thorn \-ˌthȯrn\

Definition of buckthorn

  1. 1 :  any of a genus (Rhamnus of the family Rhamnaceae, the buckthorn family) of often thorny trees or shrubs some of which yield purgatives or pigments

  2. 2 :  a shrub or small tree (Bumelia lycioides) of the sapodilla family of the southern U.S.

Recent Examples of buckthorn from the Web

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First Known Use of buckthorn

1578


Medical Dictionary

buckthorn

play
noun buck·thorn \ˈbək-ˌthȯ(ə)rn\

Medical Definition of buckthorn

  1. :  a shrub or tree of the genus Rhamnus sometimes having thorny branches and often containing purgative principles in bark or sap and producing fruits sometimes used as a source of yellow and green dyes or pigments—see cascara buckthorn


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