1. smooth, wavelike movements or curves; gentle rises and falls in form or motion

Examples

• The undulations of the sand dunes stretched across the desert.
• We could see the gentle undulations of the hills in the distance.
• The snake moved with smooth undulations through the grass.
• The undulations of the ocean surface caught the sunlight.
• The fabric showed beautiful undulations as it flowed in the breeze.
• The road followed the natural undulations of the landscape.