Piscidia pis·ci·dia uncommon noun 1. genus of shrubs or small trees having indehiscent pods with black seeds; roots and bark yield fish poisons Synonymsgenus Piscidia Related words Word family Piscidia erythrinaPiscidia piscipula Broader terms rosid dicot genus Parts Papilionoideae Part of Jamaica dogwood WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.