extrados /ek-strāˈdos/ (architecture)

1. The convex surface of an arch
2. The external curve of the keystone of an arch

• sporulating
• sporulation
• sporulations
• sporule
• sporules
• sposh
• sposhes
• sposhier
• sposhiest
• sposhy
• -spot
• spot
• SPOT
• spot advertising
• spot-barred
• spot cash
• spot cashes
• spot check
• spot-check
• spot-checked
• spot-checking
• spot checks
• spot-checks
• spot dance
• spot dances