extrados /ek-strāˈdos/ (architecture)

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

• Celestine
• celestines
• celestite
• celestites
• celiac
• celiacs
• celibacies
• celibacy
• celibatarian
• celibate
• celibates
• cell
• cella
• cellae
• cellar
• cellarage
• cellarages
• cellar-book
• cellar-books
• cellared
• cellarer
• cellarers
• cellaret
• cellarets
• cellar-flap