family Dugongidae fa·mi·ly·dugongidae uncommon noun 1. a family of mammals of order Sirenia including dugongs and Steller''s sea cow SynonymsDugongidaefamily Dugongidae Related words Broader terms mammal family Parts Sirenia Part of genus DugongHydrodamalis WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
