• Webster's Revised Unabridged Dictionary
    • n.pl Odontotormae (Paleon) An order of extinct toothed birds having the teeth in sockets, as in the genus Ichthyornis. See Ichthyornis.
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Century Dictionary and Cyclopedia
    • odontotormae Birds with teeth implanted in separate sockets; a subclass of Aves represented by Ichthyornis and related genera from the Cretaceous of North America. They remarkably combine the carinate sternum, developed wings, and pygostyled tail of modern birds with socketed teeth and fish-like vertebræ having biconcave or amphicœlous bodies. Originally Odontormæ. See cut under Ichthyornis.
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Webster's Revised Unabridged Dictionary
NL., fr. 'odoy`s 'odo`ntos, a tooth + a socket