The Collaborative International Dictionary of English v.0.48:

Cyclosorus \Cyclosorus\ n.
   a small genus of terrestrial ferns of tropical and
   subtropical southern hemisphere.

   Syn: genus Cyclosorus.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Cyclosorus
    n 1: small genus of terrestrial ferns of tropical and
         subtropical southern hemisphere [syn: Cyclosorus, genus
         Cyclosorus]