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Home > Terms > English, UK (UE) > Keystone
Keystone
The uppermost wedge-shaped voussoir at the crown of an arch that locks the other voussoirs into place.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Construction
- Category: Bridge
- Company: Iowa DOT
- Product:
- Acronym-Abbreviation:
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