plaster

Dictionary definition · plaster

a mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings
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
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.
a surface of hardened plaster (as on a wall or ceiling)"there were cracks in the plaster"
adhesive tape used in dressing wounds

apply a heavy coat to
cover conspicuously or thickly, as by pasting something on"The demonstrators plastered the hallways with posters"
affix conspicuously"She plastered warnings all over the wall"
apply a plaster cast to"plaster the broken arm"
coat with plaster"daub the wall"
dress by covering with a therapeutic substance

Source: Open English WordNet (CC BY 4.0).