family Rhyniaceae fa·mi·lyr·hyniaceae uncommon noun 1. primitive plants of the Paleozoic SynonymsRhyniaceaefamily Rhyniaceae Related words Broader terms fern family Parts Psilophytales Part of RhyniaHorneophyton WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
