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broach


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1 To remove the marks of rough scraping from a stone face, thus finishing it as broached work.

2 To drill holes in stone in a quarry and then cut between them to free the blocks.

3 Spire, more particularly one on a tower without parapets, requiring extra masonry to effect the transition between the square tower and the octagonal base of the spire: these partial pyramidal forms are called broaches. Broach-spires were usually First Pointed, and occasionally Second Pointed.

4 A pointed ornamental structure, e.g. an obelisk.

5 Junction (broach-stop or chamfer) between a chamfered and squared edge by which the bevel merges into a right angle.

Subjects: Architecture.


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