extrados /ek-strāˈdos/ (architecture)

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

• deep-freezed
• deep-freezes
• deep-freezing
• deep-fried
• deep-fries
• deep-froze
• deep-frozen
• deep-fry
• deep-frying
• deepie
• deepies
• deep kiss
• deep kisses
• deep kissing
• deep-laid
• deep linking
• deep litter
• deep litters
• deeply
• deepmost
• deep-mouthed
• deepness
• deepnesses
• deep-read
• deep-rooted