Main Entry:

buck·thorn

Pronunciation:

\-ˌthȯrn\

Function:

noun

Date:

1578

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 : a shrub or small tree (Bumelia lycioides) of the sapodilla family of the southern United States