Buckthorn

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Buckthorn \Buck"thorn`\, n. (Bot.)
     A genus ({Rhamnus}) of shrubs or trees. The shorter branches
     of some species terminate in long spines or thorns. See
     {Rhamnus}.
     [1913 Webster]
  


     {Sea buckthorn}, a plant of the genus {Hippopha["e]}.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  buckthorn
       n 1: a shrub or shrubby tree of the genus Rhamnus; fruits are
            source of yellow dyes or pigments
       2: any shrub or small tree of the genus Bumelia
       3: an Old World plantain with long narrow ribbed leaves widely
          established in temperate regions [syn: {English plantain},
           {narrow-leaved plantain}, {ribgrass}, {ribwort}, {ripple-grass},
           {Plantago lanceolata}]