plaster

(noun) a mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings.

(noun) any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs. Synonyms: plaster of Paris.

(noun) a medical dressing consisting of a soft heated mass of meal or clay that is spread on a cloth and applied to the skin to treat inflamed areas or improve circulation etc.. Synonyms: poultice, cataplasm.

(noun) a surface of hardened plaster (as on a wall or ceiling). Synonyms: plasterwork. Example: "There were cracks in the plaster."

(noun) adhesive tape used in dressing wounds. Synonyms: adhesive plaster, sticking plaster.

(verb) apply a heavy coat to. Synonyms: plaster over, stick on.

(verb) cover conspicuously or thickly, as by pasting something on. Synonyms: beplaster. Examples: "The demonstrators plastered the hallways with posters." "She let the walls of the apartment be beplastered with stucco."

(verb) affix conspicuously. Example: "She plastered warnings all over the wall."

(verb) apply a plaster cast to. Example: "Plaster the broken arm."

(verb) coat with plaster. Synonyms: daub. Example: "Daub the wall."

(verb) dress by covering with a therapeutic substance. Synonyms: poultice.