Stru`thi*o"nes (?), n. pl. [NL. See Struthio.] Zool. (a)
A division, or order, of birds, including only the African ostriches.
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.
© Webster 1913.