The Collaborative International Dictionary of English v.0.48:

Deinornis \Dei*nor"nis\, n. [NL.] (Paleon.)
   See Dinornis.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dinornis \Di*nor"nis\, n. [NL., fr. Gr. ? terrible + ? bird.]
   (Paleon.)
   A genus of extinct, ostrichlike birds of gigantic size, which
   formerly inhabited New Zealand. See Moa. [Written also
   Deinornis.] Dinosaur