: a closer bigger than half a brick; specifically : a brick with one corner cut away making the header at that end half the width of the brick — compare queen closer
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/kloh"zeuhr/, Masonry.
1. a brick of regular length and thickness, used in building corners, having a long bevel from a point on one side to one about halfway across the adjacent end.
2. a brick of three-quarter length for finishing a course at the end.
Also, king closure. Cf. queen closer.
Useful english dictionary. 2012.