Lemnaceae lem·na·ceae uncommon noun 1. family of small free-floating thalloid plants Synonymsfamily Lemnaceaeduckweed family Related words Broader terms monocot family Parts Arales Part of duckweedLemnaSpirodelaWolffiaWolffiella WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
