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cross vault

or cross-vault, kraws-vawlt, ˈkrɔsˌvɔlt, kros‐, ˈkrɒs‐

noun, Architecture.
1.
a vault or ceiling created by the intersection of vaults.
Also, cross vaulting, cross-vaulting.
Also called groin vault.
Related forms
cross-vaulted, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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