1. a series of parallel ridges and grooves formed by folding or bending a surface
2. the process or act of forming ridges and grooves in a material

Examples

• The corrugation on the cardboard box makes it stronger and lighter.
• Metal roofing often features corrugation to increase its structural strength.
• The corrugation of her brow showed her deep concentration.
• Corrugation in the fabric created an interesting textured pattern.
• The waves left corrugation marks in the sand along the beach.
• Engineers use corrugation in bridge design to improve load-bearing capacity.