family Psilotaceae fa·mi·lyp·silotaceae uncommon noun 1. small family of lower ferns having nearly naked stems and minute scalelike leaves SynonymsPsilotaceaefamily Psilotaceae Related words Broader terms fern family Parts Psilotales Part of Psilotum WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
