tierceron


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tierceron

1. An intermediate rib between the main rib of a Gothic vault.
See also: Rib
2. An intermediate rib between the main ribs of a Gothic vault.

tierceron

In medieval vaulting, a secondary rib springing from an intersection of two other ribs; an intermediate rib that rises between the main diagonal and transverse ribs from the impost of the pier to the ridge rib.
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