Dentistry. The portion of a denture which is moulded to the shape of the mouth and gums and holds the artificial teeth; a similar portion of any…

(a) a dental plate kept in position by atmospheric pressure; (b) (see quot. 1889).

A plate fitted into the roof of the mouth in the surgical treatment of cleft palate, as part of a denture, etc.

Technical senses. Dentistry. The basal part of a denture, which replaces alveolar tissue and bears the artificial teeth.