Thecodont

n. [From Gr. θήκη, a case, and ὀδούς, ὀδόντος, a tooth.] (Palæon.) An extinct saurian, having the teeth implanted in sockets. R. Owen.

a. (Zoöl.) (a.) Having the teeth inserted in a bony socket. (b.) Of, or pertaining to, the thecodonts.