Naiadaceae naia·da·ceae uncommon noun 1. monotypic family of aquatic plants having narrow leaves and small flowers Synonymsfamily NaiadaceaeNajadaceaefamily Najadaceaenaiad family Related words Broader terms monocot family Parts Naiadales Part of Naias WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
