from The Century Dictionary and Cyclopedia
- n. In architecture, a barrel- or cradle-vault; a semicircular vault. See cylindrical vaulting, under cylindric.
Sorry, no etymologies found.
Passing through the vestibule, whose tunnel-vault supports the tower, the minor portal appears, almost a replica of the outer door, and the whole forms an unusual mode of entrance, graceful in detail, ponderous in general effect.
Far above rises the tunnel-vault, whose sheer height is grandly dignified; the arches rest on roughly carved capitals, and the outer rectangle of the piers is displaced for half a column.
His archivolts and the pendentives of his vaults always rest upon thick walls, and yet almost every variety of the simple arch or tunnel-vault are to be found among the ruins of his buildings.
The nave was roofed with a tunnel-vault with a pointed one over it, on which the roofing slabs were laid. "