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/plˈæstər əv pˈɛrɪs/ Listen

noun

Plaster n. (Formerly written also plaister)

1.

(Med.) An external application of a consistency harder than ointment, prepared for use by spreading it on linen, leather, silk, or other material. It is adhesive at the ordinary temperature of the body, and is used, according to its composition, to produce a medicinal effect, to bind parts together, etc.; as, a porous plaster; sticking plaster.

2.

A composition of lime, water, and sand, with or without hair as a bond, for coating walls, ceilings, and partitions of houses. See Mortar.

3.

Calcined gypsum, or plaster of Paris, especially when ground, as used for making ornaments, figures, moldings, etc.; or calcined gypsum used as a fertilizer.

Plaster cast, a copy of an object obtained by pouring plaster of Paris mixed with water into a mold.

Plaster of Paris. (Chem.) Anhydrous calcium sulphate, or calcined gypsum, which forms with water a paste which soon sets or hardens, and is used for casts, moldings, etc. The term is loosely applied to any plaster stone or species of gypsum.

Plaster of Paris bandage (Surg.), a bandage saturated with a paste of plaster of Paris, which on drying forms a perfectly fitting splint.

Plaster stone, any species of gypsum. See Gypsum.

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Etymology of 'Plaster of Paris'

Collaborative International Dictionary of English 0.48

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"Plaster of paris" Quotes from Famous Books

... when our carriage came out of the conflict, we all looked as if a sack of flour had been shaken over us. The implements used in this ridiculous warfare, are, for common purposes, little balls of plaster of Paris and flour, made to resemble small comfits: friends and acquaintances pelted each other with real confetti, and those of the most delicious and expensive kinds. A double file of carriages moved in a contrary direction along the Corso; a space in the middle and on each side being left ...

— The Diary of an Ennuyee • Anna Brownell Jameson

... Salts formed by the combination of some base with sulphuric acid, as Sulphate of copper, (blue vitriol or blue stone,) a combination of sulphuric acid with copper. Sulphate of iron: Copperas or green vitriol. Sulphate of lime: Gypsum or plaster of Paris. Sulphate of magnesia: Epsom salts. Sulphate of potash: A chemical salt, composed of sulphuric acid and potash. Sulphate of soda: Glauber's ...

— The American Woman's Home • Catherine E. Beecher and Harriet Beecher Stowe

... rougher nor a bear's hide! Go and ask for new, and they palms you off with stale. They'll put a loaf a week old into the oven to hot up again, and then sell it to you for new! There ought to be a criminal code passed for hanging bakers. They're all cheats. They mixes up alum, and bone-dust, and plaster of Paris, and—Drat that door! Who's ...

— The Channings • Mrs. Henry Wood

... pressure upon both jaws, necessitating a constant effort upon the part of the unfortunate wearer to keep it in place. Metallic swaged plates were introduced in the latter part of the 18th century. An impression of the gums was taken in wax, from which a cast was made in plaster of Paris. With this as a model, a metallic die of brass or zinc was prepared, upon which the plate of gold or silver was formed, and then swaged into contact with the die by means of a female die or counter-die of lead. The process is essentially the same to-day, with the addition of numerous ...

— Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 - "Demijohn" to "Destructor" • Various

... material between the carbons in a Jablochkoff candle or other candle of that type. Kaolin was originally used. Later a mixture of two parts calcium sulphate (plaster of Paris) and one part ...

— The Standard Electrical Dictionary - A Popular Dictionary of Words and Terms Used in the Practice - of Electrical Engineering • T. O'Conor Slone

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