Definitions
1.NounAny of several, often thorny shrubs or small trees, especially
the buckthorn family (Rhamnaceae),
especially genus Rhamnus,
especially common buckthorn or purging buckthorn (Rhamnus cathartica).
also alder buckthorn (Frangula), especially Frangula alnus).
sea buckthorn (Hippophae, in family Elaeagnaceae).
2.Nounthe buckthorn family (Rhamnaceae),
especially genus Rhamnus,
especially common buckthorn or purging buckthorn (Rhamnus cathartica).
also alder buckthorn (Frangula), especially Frangula alnus).
3.Nounespecially genus Rhamnus,
especially common buckthorn or purging buckthorn (Rhamnus cathartica).
4.Nounespecially common buckthorn or purging buckthorn (Rhamnus cathartica).
5.Nounalso alder buckthorn (Frangula), especially Frangula alnus).
6.Nounsea buckthorn (Hippophae, in family Elaeagnaceae).