tierceron means A type of rib in Gothic vaulting, springing from the intersection of two other ribs. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
tierceron is pronounced /ˈtɪə(ɹ)səɹɒn/.
Etymology
From French tierceron, from tierce (“third”) + -eron.
noun
- A type of rib in Gothic vaulting, springing from the intersection of two other ribs.“It would carry us too far from our subject to trace the consequences of the introduction of the tierceron; it must suffice to say that it immediately affected the curvature and the moulding of the vaulting ribs and the composition of the springer.”