Rummikub is a tile-based game for two to four players, combines elements of the card game rummy and mahjong.
A retainer is a simple device that helps to correct your bite, as well as sometimes address other conditions. You may have seen people wearing a retainer before, but they are not all that noticeable. A retainer is a small device that is made out of clear plastic, rubber, or even metal. They are custom-made so that they only fit your teeth. They are part of a treatment plan that has likely been determined by an orthodontist.
n 2. the type of direct retainer used in the construction of removable partial dentures; it consists of a female portion within the coronal portion of the crown of an abutment and a fitted male portion attached to the denture proper. These retainers may be fabricated in the dental office or obtained through commercial sources. retainer, matrix, n (matrix holder), a mechanical device designed to engage the ends of a matrix around the tooth.