1. a curved line that forms part of a circle
2. something shaped like a curved line
3. a continuous electric discharge between two electrodes
Usage: electrical

1. to move in a curved path

Examples

• The rainbow formed a perfect arc across the sky.
• She drew an arc with her compass in geometry class.
• The basketball followed a high arc into the hoop.
• The bridge spans the river in a graceful arc.
• The welder created an electric arc to join the metal pieces.
• The ball arced over the fence for a home run.
• Lightning arced between the clouds and the ground.