Definition of plaster in English:


Line breaks: plas|ter
Pronunciation: /ˈplɑːstə


  • 1 [mass noun] A soft mixture of sand and cement and sometimes lime with water, for spreading on walls, ceilings, or other structures, to form a smooth hard surface when dried: strip away the plaster to expose the bare brick [as modifier]: the crumbling plaster ceiling
    More example sentences
    • This demolition exposed ‘stripes’ of structure throughout the existing plaster walls and ceilings.
    • If you are nailing over a lath and plaster ceiling, longer nails may be needed.
    • The nature of their decoration, whether by painted plaster on walls or ceilings, or by tessellated and mosaic floors, compares well with that from the countryside.
  • 1.1 (also plaster of Paris) A hard white substance made by the addition of water to powdered and partly dehydrated gypsum, used for holding broken bones in place and making sculptures and casts: he had both arms in plaster [as modifier]: a small plaster statue of Our Lady
    More example sentences
    • Once the design is selected, a dough made of ceramic powder, plaster of Paris, cotton and glue is shaped accordingly.
    • Mix up some plaster of Paris with the water in the paper cup, stirring until smooth with the Popsicle stick.
    • We gave them a bottle of water so they could make a plaster of Paris cast for a kid who had broken his arm.
  • 1.2The powder from which plaster of Paris is made.
    More example sentences
    • Mother had inadvertently used plaster of Paris instead of flour.
    • Mix dry plaster of Paris with water until you have a thick, pudding-like consistency.
    • I watch her sifting plaster of Paris through her fingers as she sprinkles it slowly onto limp water.
  • 2 (also sticking plaster) British An adhesive strip of material for covering cuts and wounds: waterproof plasters [mass noun]: a large piece of plaster on her forehead
    More example sentences
    • Waterproof plasters should be used over the wounds when showering.
    • This includes covering cuts and broken skin with waterproof plasters and washing hands frequently and thoroughly.
    • I applied special plasters to the suppurating wounds there.
  • 2.1 dated A bandage on which a poultice or liniment is spread for application. See mustard plaster.
    More example sentences
    • It is usually followed by herbal plasters and poultices called lepa to help draw toxins out of the pores of the skin.
    • These agents could be used in a pure form but are best utilized in concoctions, plasters, poultices, packs, washes or fumigants.
    • Lotions, plasters, and ointments sold at the store can sometimes be used to remove a wart.


[with object] Back to top  
  • 1Cover (a wall, ceiling, or other structure) with plaster: the inside walls were plastered and painted the old windows have been filled and plastered over
    More example sentences
    • My walls and ceiling were plastered and at some point covered with wallpaper.
    • Over time, plaster walls and ceilings may develop stress-cracks.
    • The brick walls were plastered over with lime of which some traces can be seen.
    cover thickly, smother, spread, smear, cake, coat, daub, bedaub, overlay
    literary besmear
  • 1.1 (plaster something with/in) Coat or cover something with (a substance), especially to an extent considered excessive: a face plastered in heavy make-up
    More example sentences
    • Sainsburys really got behind Comic Relief, plastering their stores in red noses.
    • Commercial Alert is appealing to journalists not to use the corporate names in sports articles - he says plastering ads in stories blurs the line between editorial and advertising.
    • Both sexes are plastered with band logos on bags, T-shirts, patches - Slipknot, Korn, The Deftones.
  • 1.2 [with object and adverbial] Make (hair) lie flat by applying a liquid to it: his hair was plastered down with water
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    • The rain had plastered his hair flat onto his forehead and turned his pony tail into a slick pointy tip.
    • Water plastered my hair to my red, sweaty face and I ended up looking more like a drenched beach ball than anything else.
    • The rain water plastered her loose hair to her forehead.
  • 1.3 [with object and adverbial] Display widely and conspicuously: her story was plastered all over the December issue
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    • It flies from every third building, it is emblazoned on shop displays, plastered on the bumpers of cars, and scrawled on anti-war banners.
    • His company had plastered posters and media stories around the area telling everyone that track repair work would mean no trains that day and advertising replacement buses.
    • You have to wonder why he should want his life story plastered all over the daily papers.
  • 2Apply a plaster cast or medical plaster to (a part of the body).
    More example sentences
    • Staff at Bath's Royal United Hospital are unwilling to plaster her leg because it would require giving her an anaesthetic, which could be dangerous with her heart problems.
    • My husband took her to the camp doctor who plastered her arm.
  • 3 informal , • dated Bomb or shell (a target) heavily: are they expecting the air force to plaster the city tonight or what?
    More example sentences
    • The support-by-fire elements plaster the T-80's area with machine gun fire and main gun rounds.
    • The enemy plastered the troops in this position, particularly from the air, where he was unmolested, and followed the bombardment by a further attack on our position.



More example sentences
  • I'm watching the mouse and the mouse is watching me, and I can smell the dust and the sainfoin and the cool plastery smell, and I'm up the Amazon, and it's bliss, pure bliss.
  • I've partially moved out of my plastery noisy house to stay with my friend whose roommate is away for a week or so.
  • Olitski's Tiresias View, with its incised creamy acrylic, recalls a parched river bed, while Noel's The Gate of Dawn, with its white on-white bands and plastery striations, looks like glacier-scraped stone.


Old English, denoting a bandage spread with a curative substance, from medieval Latin plastrum (shortening of Latin emplastrum, from Greek emplastron 'daub, salve'), later reinforced by the Old French noun plastre. Sense 1 dates from late Middle English.

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