nicker seed

English Thesaurus

1. hard shiny grey seed of a bonduc tree; used for making e.g. jewelry (noun.plant)

hypernym	:	seed,
definition	:	a small hard fruit (noun.plant)

part meronym	:	bonduc, bonduc tree, caesalpinia bonduc, caesalpinia bonducella,
definition	:	tropical tree with large prickly pods of seeds that resemble beans and are used for jewelry and rosaries (noun.plant)