WordReference Random House Unabridged Dictionary of American English © 2026
fan′ vault′,
- Architecturea vault composed of a number of concave conoidal surfaces, usually four, springing from the corners of the vaulting compartment and touching or intersecting at the top, often decorated with ribs. See illus. under vault 1.
'fan vault' also found in these entries (note: many are not synonyms or translations):