Source : Webster's Revised Unabridged Dictionary (1913)

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

Source : WordNet®

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