What is the meaning of plaster?

noun

• 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.
  • synonyms: plaster of Paris
• 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
• A surface of hardened plaster (as on a wall or ceiling. )
  • usage: "there were cracks in the plaster"
  • synonyms: plasterwork
• Adhesive tape used in dressing wounds.
  • synonyms: adhesive plaster, sticking plaster

verb

• Apply a heavy coat to.
  • synonyms: plaster over, stick on
• Cover conspicuously or thickly, as by pasting something on.
  • usage: "The demonstrators plastered the hallways with posters"; "She let the walls of the apartment be beplastered with stucco"
  • synonyms: beplaster
• Affix conspicuously.
  • usage: "She plastered warnings all over the wall"
• Apply a plaster cast to.
  • usage: "plaster the broken arm"
• Coat with plaster.
  • usage: "daub the wall"
  • synonyms: daub
• Dress by covering with a therapeutic substance.
  • synonyms: poultice