Definition of struthiones

• pl. - of Struthio
• n. pl. - A division, or order, of birds, including only the African ostriches.
• n. pl. - In a wider sense, an extensive group of birds including the ostriches, cassowaries, emus, moas, and allied birds incapable of flight. In this sense it is equivalent to Ratitae, or Dromaeognathae.