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voussoir

American  
[voo-swahr] / vuˈswɑr /

noun

Architecture.
  1. any of the pieces, in the shape of a truncated wedge, that form an arch or vault.


voussoir British  
/ vuːˈswɑː /

noun

  1. a wedge-shaped stone or brick that is used with others to construct an arch or vault

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of voussoir

1325–75; < French; replacing Middle English vousor ( i ) e < Anglo-French; Old French volsoir < Vulgar Latin *volsōrium, equivalent to *volt ( us ) (for Latin volūtus ), past participle of volvere to turn + -tōrium -tory 2 with tt > s


Explanation

A voussoir is a wedge-shaped stone used in building arches and vaults. If you’re building an arch, or any other curved shape, rectangle bricks just won’t do. You need a voussoir or two! One type of building block is named by the French word voussoir. A voussoir is a stone block that’s wedge shaped, like a piece of pie with a bite taken out. Since it takes more than one to build with, the word is usually plural. Voussoirs are used to make specific buildings — arches and tombs. The rounded form of an arch is tricky to build, and the wedge shape of voussoirs helps them fit together.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

He learns the endless terms, the vocabulary that classifies the details of ancient buildings, writing them on separate index cards and making illustrations on the back: architrave, entablature, tympanum, voussoir.

From "The Namesake" by Jhumpa Lahiri

Each voussoir was a cast-iron framed piece two feet long and five feet in depth, and these were bolted together.

From Scientific American Supplement, No. 324, March 18, 1882 by Various

Its ellipse is composed of eight voussoirs, four on each side, and a key with a small wedge-shaped stone voussoir on each side of it.

From A History of Art in Chaldæa & Assyria, v. 1 by Sir Walter Armstrong

Next morning he was early at his arch, and had soon finished the voussoir which he had been roughing out when this vital interruption occurred.

From Peccavi by E. W. (Ernest William) Hornung

If neither a corner-stone, a voussoir nor a capital, it has at least its place in the edifice which forms the literary history of the nineteenth century.

From Lippincott's Magazine of Popular Literature and Science, Volume 20. July, 1877. by Various

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