| 1. | A rounded seed, rather smaller than a nutmeg, having a hard smooth shell, and a yellowish or bluish color. The seeds grow in the prickly pods of tropical, woody climbers of the genus Cæsalpinia. Cæsalpinia Bonduc has yellowish seeds; Cæsalpinia Bonducella, bluish gray. |
| Noun | 1. | nicker nut - hard shiny gray seed of a bonduc tree; used for making e.g. jewelry Synonyms: bonduc nut, nicker seed |