Source : Webster's Revised Unabridged Dictionary (1913)

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}.]

Source : WordNet®

Dinornis
     n : type genus of the Dinornithidae: large moas [syn: {genus
         Dinornis}]