quoin

  1. Noun.  Any of the corner building blocks of a building, usually larger or more ornate than the surrounding blocks.
  2. Noun.  The keystone of an arch.
  3. Noun.  A metal wedge which fits into the space between the type and the edge of a chase, and is tightened to fix the metal type in place.

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This entry was last updated on RefTopia from its source on 3/20/2012.