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Related to Voussoir: Trumeau, groin vault, barrel vault, archivolt, putlog, Radiating chapels
A wedge-shaped block whose converging sides radiate from a center forming an element of an arch or vaulted ceiling.
A voussoir that is squared along its upper surfaces so that it fits horizontal courses of masonry units.
A wedge-shaped masonry unit in an arch or vault whose converging sides are cut as radii of one of the centers of the arch or vault.