I. aˈspidēəm
Etymology: New Latin, from Greek aspidion small shield, diminutive of aspid-, aspis
synonym of dryopteris
II. noun
Etymology: New Latin, from Greek aspidion
1. capitalized , in some classifications : a genus of ferns including those otherwise divided among the genera Dryopteris, Polystichum, and Tectaria
2. plural aspidia -ēə : any fern belonging to the genus Dryopteris, Polystichum, or Tectaria
3. plural aspidia : a drug consisting of the rhizome and stipes especially of the male fern used as the oleoresinous extract for the expulsion of tapeworms