Pĕs'sa-ry, n.

n. [Fr. pessaire, It. pessario, Lat. pessarium, i. q. pessum, pessus, Gr. πεσσόν, πεσσός.] An instrument made of wood, caoutchouc, waxed linen, or the like, and introduced into the vagina to support the mouth and neck of the uterus.