Nickar nut \Nick"ar nut`\, Nickar tree \Nick"ar tree`\ (Bot.)
Same as {Nicker nut}, {Nicker tree}.
[1913 Webster]
Nicker nut \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}.]
[1913 Webster]