1. A series of parallel ridges and grooves formed by folding or pressing; a wrinkled or ridged surface.
2. Sheets of corrugated metal or cardboard, typically used in construction or packaging.

Examples

• The corrugations on the metal roof help it shed water more effectively.
• She felt the corrugations in the cardboard box as she packed the fragile items.
• The corrugations of the fabric created an interesting texture.
• The old barn was built with corrugations of steel.
• Corrugations in the soil can improve water drainage.
• The corrugations on the surface of the coin were worn smooth over time.