'Dryopteris filix-mas' definitions:

Definition of 'Dryopteris filix-mas'

From: WordNet
noun
Fern of North America and Europe whose rhizomes and stalks yield an oleoresin used to expel tapeworms [syn: male fern, Dryopteris filix-mas]

Definition of 'Dryopteris filix-mas'

From: GCIDE
  • male fern \male fern\ n. A fern of North America and Europe (Dryopteris filix-mas) whose rhizomes and stalks yield an oleoresin used to expel tapeworms. It is a member of the woodfern genus. [WordNet 1.5]