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Definition of "quoin" [quoin]

  • An exterior angle of a wall or other piece of masonry. (noun)
  • Any of the stones used in forming such an angle, often being of large size and dressed or arranged so as to form a decorative contrast with the adjoining walls. (noun)
  • A keystone. (noun)
  • Printing A wedge-shaped block used to lock type in a chase. (noun)
  • A wedge used to raise the level of a gun. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "quoin" in a sentence
  • "A quoin is a solid which differs from a wedge in having its sharp end formed by the steep inclination of one side, instead of the mutual tapering of both sides."
  • "The figure 8 represents what is called a quoin, and keeps the bolster in its place."
  • "The two inner sides of each pair of skill facets form the half of a diamond or lozenge-shaped facet, called a "quoin," of which there are four."