quoin

2 entries found for quoin.
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quoin[1,noun] quoin[2,transitive verb]

Main Entry: ¹quoin
Pronunciation: 'koin, 'kwoin
Function: noun
Etymology: alteration of ¹coin
1 a : a solid exterior angle (as of a building) b : one of the members (as a block) forming a quoin and usually differentiated from the adjoining walls by material, texture, color, size, or projection
2 : the keystone or a voussoir of an arch
3 : a wooden or expandable metal block used by printers to lock up a form within a chase
[quoin illustration]