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... n.) Plaster of Paris or gypsum, especially as prepared for use in painting or in making bas-reliefs and the like; by extension, a plasterlike or pasty material spread upon a surface to fit it for painting or gilding or a surface so prepared.(n.) A work of art done in gesso.

... proportions, hardens in a plasterlike form. Used for making casts and dies.stone, diamond, n. Rotary instruments containing diamond chips as the abrasive. Available in various sizes, shapes, and abrasive consistency. Used for tooth reduction in operative dentistry and crown and bridge prostheses, tooth contouring in the occlusal adjustment procedure, and osseous and ...