|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|a gadget; dingus; thingumbob.|
|Also called: squinch arch a small arch, corbelling, etc, across an internal corner of a tower, used to support a superstructure such as a spire|
|[C15: from obsolete scunch, from Middle English sconcheon, from Old French escoinson, from es-|
in architecture, any of several devices by which a square or polygonal room has its upper corners filled in to form a support for a dome: by corbelling out the courses of masonry, each course projecting slightly beyond the one below; by building one or more arches diagonally across the corner; by building in the corner a niche with a half dome at its head; or by filling the corner with a little conical vault that has an arch on its outer diagonal face and its apex in the corner
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