a. [ Gr. &unr_; a case + &unr_;, &unr_;, a tooth. ] 1. (Anat.) Having the teeth inserted in sockets in the alveoli of the jaws. [ 1913 Webster ]
2. (Paleon.) Of or pertaining to the thecodonts. [ 1913 Webster ]
n. (Paleon.) One of the Thecodontia. [ 1913 Webster ]
‖n. pl. [ NL. ] (Paleon.) A group of fossil saurians having biconcave vertebrae and the teeth implanted in sockets. [ 1913 Webster ]