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plaster of Paris
plaster of Parisn. Any of a group of gypsum cements, essentially hemihydrated calcium sulfate, CaSO4· 1/2 H2O, a white powder that forms a paste when it is mixed with water and then hardens into a solid, used in making casts, molds, and sculpture.
[Middle English, after Paris2France.]plaster of Paris n 1. a white powder that sets to a hard solid when mixed with water, used for making sculptures and casts, as an additive for lime plasters, and for making casts for setting broken limbs. It is usually the hemihydrate of calcium sulphate, 2CaSO4.H2O 2. the hard plaster produced when this powder is mixed with water: a fully hydrated form of calcium sulphate Sometimes shortened to: plaster [C15: from Medieval Latin plastrum parisiense, originally made from the gypsum of Paris]plas′ter of Par′is (or par′is),
n. calcined gypsum in white, powdery form, used as a base for gypsum plasters, as an additive of lime plasters, and as a material for fine and ornamental casts. [1375–1425; so called because prepared from the gypsum of Paris, France] plas·ter of Paris (plăs′tər) A form of calcium phosphate derived from the mineral gypsum. It is mixed with water to make casts and molds.plaster of Paris - So called because it is prepared from the gypsum of Paris, France.See also related terms for plaster.Thesaurus| Noun | 1. | plaster of Paris - 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 limbsplastergesso - gypsum or plaster of Paris spread on a surface to make it suitable for painting or gilding (or a surface so prepared)gypsum - a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)calcium sulfate, calcium sulphate - a white salt (CaSO4) |
Translations
plaster of Paris
plaster of Paris: see gypsumgypsum
, mineral composed of calcium sulfate (calcium, sulfur, and oxygen) with two molecules of water, CaSO4·2H2O. It is the most common sulfate mineral, occurring in many places in a variety of forms. A transparent crystalline variety is selenite.
..... Click the link for more information. .Plaster of parisA gypsum substance especially suitable for fine ornamental plasterwork because it fills a mold completely and dries quickly.plaster of paris[′plas·tər əv ′par·əs] (inorganic chemistry) White powder consisting essentially of the hemihydrate of calcium sulfate (CaSO4·½H2 O or 2CaSO4·H2O), produced by calcining gypsum until it is partially dehydrated; forms with water a paste that quickly sets; used for casts and molds, building materials, and surgical bandages. Also known as calcined gypsum. plaster of paris, hemihydrate plaster1. Calcined gypsum, containing no additives to control the set; a rapid-setting plaster used mainly for ornamental casting. 2. Gauging plaster.plaster of Paris
plaster [plas´ter] 1. a mixture of materials that hardens; used for immobilizing or making impressions of body parts.2. an adhesive substance spread on fabric or other suitable backing material, for application to the skin, often containing some medication, such as an analgesic or local vasodilator.plaster of Paris calcium sulfate dihydrate, reduced to a fine powder; the addition of water produces a porous mass used in making casts and bandages to support or immobilize body parts, and in dentistry for making study models.plas·'ter of Par·isexsiccated calcium sulfate from which the water of crystallization has been expelled by heat, but which, when mixed with water, will form a paste that subsequently sets.plaster of Parisn. Any of a group of gypsum cements, essentially hemihydrated calcium sulfate, CaSO4· 1/2 H2O, a white powder that forms a paste when it is mixed with water and then hardens into a solid, used in making casts, molds, and sculpture.plas·ter of Par·is (plas'tĕr par'is) Any of a group of gypsum cements, essentially hemihydrated calcium sulfate, a white powder that forms a paste when mixed with water and then hardens into a solid; used in making casts, molds, and sculpture. [L. plastrum, plaster + Paris, France]plaster of Paris A white powder of dried calcium sulphate dihydrate which, mixed with water, gives off heat and hardens. Reinforced with loose bandage it forms a strong and useful support (CAST) or dental mould.Paris, city in France. plaster of Paris - a gypsum material used for making casts.plas·ter of Par·is (plas'tĕr par'is) Exsiccated calcium sulfate from which water of crystallization has been expelled by heat, but which, when mixed with water, forms a paste that then sets. [L. plastrum, plaster + Paris, France]FinancialSeeParisAcronymsSeepopularplaster of Paris
Synonyms for plaster of Parisnoun any of several gypsum cementsSynonymsRelated Words- gesso
- gypsum
- calcium sulfate
- calcium sulphate
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