1. The act or process of bending or curving into an arch shape.
Usage: technical; formal
2. An arch-like structure or formation; the state of being arched.
Usage: technical; anatomy or architecture

Examples

• The arcuation of the bridge's supports gives it both strength and elegance.
• The dancer's body showed a graceful arcuation as she leaned backward.
• Arcuation of the spine can occur due to poor posture over time.
• The architect designed the ceiling with careful arcuation to distribute weight evenly.
• The arcuation of the tree branches created a natural canopy overhead.