naiad family naiad·fa·mily uncommon noun 1. monotypic family of aquatic plants having narrow leaves and small flowers SynonymsNaiadaceaefamily 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.
