Nick·ar nut Nick·ar tree. Bot. Same as Nicker nut, Nicker tree.
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Nick·er nut 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 Caesalpinia. Caesalpinia Bonduc has yellowish seeds; Caesalpinia Bonducella, bluish gray. [Spelt also neckar nut, nickar nut.]
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