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cross vault

or cross-vault

[kraws-vawlt, kros‐] /ˈkrɔsˌvɔlt, ˈkrɒs‐/
noun, Architecture.
a vault or ceiling created by the intersection of vaults.
Also, cross vaulting, cross-vaulting.
Also called groin vault.
Related forms
cross-vaulted, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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