1. the inner curve or underside of an arch or vault
Usage: architecture

Examples

• The architect carefully designed the intrados of the cathedral’s main arch.
• Stone masons carved decorative patterns into the intrados of the bridge.
• The intrados provides structural support while creating an elegant curved ceiling.
• Engineers measured the radius of the tunnel’s intrados during construction.
• The intrados of the Roman aqueduct showed signs of ancient repair work.
• Restoration experts cleaned centuries of soot from the chapel’s intrados.