convexo-convex (adjective)

1. In Greek mythology, the shield of Achilles was described as convexo-convex, providing maximum protection.

2. The cartoon character's eyes were drawn with a convexo-convex shape to make them appear larger and more expressive.

3. Why did the mathematician fail his geometry test? Because he couldn't differentiate between concave and convex shapes, let alone convexo-convex ones!

4. In some religious paintings, halos are depicted as convexo-convex discs around the heads of saints, symbolizing their divine aura.