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1a soft mixture of lime with sand or cement and water for spreading on walls, ceilings, or other structures to form a smooth hard surface when dried. (also plaster of Paris) a hard white substance made by the addition of water to powdered and partly dehydrated gypsum, used for holding broken bones in place and making sculptures and casts.
[so called because prepared from the gypsum of Paris, France]
the powder from which plaster is made. 2 dated a bandage on which a poultice or liniment is spread for application. See mustard plaster. (also sticking plaster) British an adhesive strip of material for covering cuts and wounds.
verb [with object]
cover (a wall, ceiling, or other structure) with plaster.
(plaster something with/in
) coat or cover something with (a substance), especially to an extent considered excessive:a face plastered in heavy makeup
make (hair) lie flat by applying a liquid to it:his hair was plastered down with water apply a plaster cast or medical plaster to (a part of the body).
(plaster something with
) cover a surface with (large numbers of pictures or posters):the store windows are plastered with posters
(plaster something over
) present a story or picture conspicuously and sensationally in (a newspaper or magazine):her story was plastered all over the December issue
informal dated bomb or shell (a target) heavily.