Vaulted

Webster's Dictionary of the English Language

·adj Covered with an arch, or vault.

II. Vaulted ·adj Arched; concave; as, a vaulted roof.

III. Vaulted ·Impf & ·p.p. of Vault.

IV. Vaulted ·adj Arched like the roof of the mouth, as the upper lip of many ringent flowers.