Quoin (architecture)
WordNet

noun


(1)   (architecture) solid exterior angle of a building; especially one formed by a cornerstone
(2)   The keystone of an arch
(3)   Expandable metal or wooden wedge used by printers to lock up a form within a chase
WiktionaryText

Noun



  1. Any of the corner building blocks of a building, usually larger or more ornate than the surrounding blocks.
 
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