Pronunciation: (buk'thôrn"), Strict Standards: Non-static method FenSites::linkTo() should not be called statically in /site/html/dictionary/buckthorn.html on line 71 [key]
1. any of several, sometimes thorny trees or shrubs belonging to the genus Rhamnus, esp. R. frangula, the bark of which is used in medicine. Cf. buckthorn family.
2. a tree or shrub belonging to the genus Bumelia, of the sapodilla family, esp. B. lycioides, a thorny tree having elliptic leaves and large clusters of white flowers, common in the southern and part of the central U.S.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.