\Pat"en\, n. [LL. patina, patena, fr. L. patina, patena, a
pan; cf. L. patere to be open, E. patent, and Gr. ? a kind of
flat dish: cf. F. pat[`e]ne. Cf. {Patina}.]
1. A plate. [Obs.]
2. (Eccl.) The place on which the consecrated bread is placed
   in the Eucharist, or on which the host is placed during
   the Mass. It is usually small, and formed as to fit the
   chalice, or cup, as a cover. [Written also {patin},
   {patine}.]