1. curved lines or parts of circles
2. curved paths or trajectories

1. moves in a curved path

Examples

• The rainbow formed perfect arcs across the sky.
• She drew several arcs with her compass in geometry class.
• The basketball arcs through the air toward the hoop.
• Lightning arcs between the clouds during storms.
• The bridge spans the river in graceful arcs.
• The sprinkler arcs water across the lawn.
• Mathematical arcs are measured in degrees or radians.