| plaster | 1. <medicine> An external application of a consistency harder than ointment, prepared for use by spreading it on linen, leather, silk, or other material. It is adhesive at the ordinary temperature of the body, and is used, according to its composition, to produce a medicinal effect, to bind parts together, etc.; as, a porous plaster; sticking plaster. 2. A composition of lime, water, and sand, with or without hair as a bond, for coating walls, ceilings, and partitions of houses. See Mortar. 3. Calcined gypsum, or plaster of Paris, especially when ground, as used for making ornaments, figures, moldings, etc.; or calcined gypsum used as a fertiliser. Plaster cast, a copy of an object obtained by pouring plaster of Paris mixed with water into a mold. Plaster of Paris. [So called because originally brought from a suburb of Paris. <mathematics> A bandage saturated with a paste of plaster of Paris, which on drying forms a perfectly fitting splint. Plaster stone, any species of gypsum. See Gypsum. Origin: AS, a plaster (in sense 1), fr. L. Emplastrum, Gr, fr. To daub on, stuff in; in + to mold: cf. OF. Plastre a plaster (in sense 2), F. Platre. Cf. Plastic, Emplaster, Piaster] [Formerly written also plaister. Source: Websters Dictionary (01 Mar 1998) |
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| plaster bandage | A roller bandage impregnated with plaster of Paris and applied moist; used to make a rigid dressing for a fracture or diseased joint. (05 Mar 2000) |
| plaster of Paris disease | Atrophy of bone in a limb which has been encased for some time in a plaster of Paris splint. (05 Mar 2000) |
| plaster splint | A splint constructed of bandages impregnated with plaster of Paris. (05 Mar 2000) |