The Collaborative International Dictionary of English v.0.48:

Odontotormae \O*don`to*tor"mae\, n.pl. [NL., fr. 'odoy`s,
   'odo`ntos, a tooth + ? a socket.] (Paleon.)
   An order of extinct toothed birds having the teeth in
   sockets, as in the genus Ichthyornis. See Ichthyornis.
   [1913 Webster]