'Polypodiaceae' definitions:
Definition of 'Polypodiaceae'
From: WordNet
noun
Ferns: a large family that in some classification systems has been subdivided into several families (including Aspleniaceae and Blechnaceae and Davalliaceae and Dennstaedtiaceae and Dryopteridaceae and Oleandraceae and Pteridaceae) [syn: Polypodiaceae, family Polypodiaceae]