Plaster

Old English plaster, from late Latin plastrum; later reinforced by Anglo-Norman plaistre.

Full definition of plaster

(countable and uncountable; plural plasters)

(uncountable) A paste applied to the skin for healing or cosmetic purposes.
(countable, New Zealand, British) A small adhesive bandage to cover a minor wound; a sticking plaster.
(uncountable) A mixture of lime or gypsum, sand, and water, sometimes with the addition of fibres, that hardens to a smooth solid and is used for coating walls and ceilings.
(countable) A cast made of plaster of Paris and gauze; plaster cast.
(uncountable) plaster of Paris.

(transitive) To cover or coat something with plaster, or apply a plaster.Her face was plastered in mud.
(transitive) To hide or cover up, as if with plaster.The radio station plastered the buses and trains with its advertisement.