The Collaborative International Dictionary of English v.0.48:

Bonduc \Bon"duc\ (b[o^]n"d[u^]k), n. [F. bonduc, fr. Ar. bunduq
   hazel nut, filbert nut.] (Bot.)
   See Nicker tree.
   [1913 Webster]

WordNet (r) 3.0 (2006):

bonduc
    n 1: handsome tree of central and eastern North America having
         large bipinnate leaves and green-white flowers followed by
         large woody brown pods whose seeds are used as a coffee
         substitute [syn: Kentucky coffee tree, bonduc,
         chicot, Gymnocladus dioica]
    2: tropical tree with large prickly pods of seeds that resemble
       beans and are used for jewelry and rosaries [syn: bonduc,
       bonduc tree, Caesalpinia bonduc, Caesalpinia
       bonducella]