Struthio

from WordNet (r) 3.0 (2006)

Struthio
    n 1: type genus of the Struthionidae: African ostriches [syn:
         {Struthio}, {genus Struthio}]

from The Collaborative International Dictionary of English v.0.48

Struthio \Stru"thi*o\, n.; pl. {Struthiones}. [L., an ostrich,
   fr. Gr. ?.] (Zool.)
   A genus of birds including the African ostriches.
   [1913 Webster]