dromaeognathous

from The Collaborative International Dictionary of English v.0.48

Dromaeognathous \Dro`m[ae]*og"na*thous\, a. [NL. dromaius emu +
   Gr. gna`qos jaw.] (Zool.)
   Having the structure of the palate like that of the ostrich
   and emu.
   [1913 Webster]