plaster (Verb) — Apply a heavy coat to.
plaster (Verb) — Cover conspicuously or thickly, as by pasting something on. ex. "The demonstrators plastered the hallways with posters"
plaster (Verb) — Affix conspicuously. ex. "She plastered warnings all over the wall"
plaster (Verb) — Apply a plaster cast to. ex. "plaster the broken arm"
plaster (Verb) — (masonry) coat with plaster. ex. "plaster the wall"
plaster (Verb) — (medicine) dress by covering with a therapeutic substance.
plaster (Noun) — A mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings.
plaster (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 moulds and sculptures and casts for broken limbs.
plaster (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..
plaster (Noun) — A surface of hardened plaster (as on a wall or ceiling). ex. "there were cracks in the plaster"
plaster (Noun) — Adhesive tape used in dressing wounds.