1. to move with a smooth wavelike motion
2. to have a wavy form or surface

1. having a wavy form, edge, or surface

Examples

• The flag undulated in the gentle breeze.
• Wheat fields undulated across the countryside.
• The snake’s body undulated as it moved through the grass.
• Hills undulate toward the distant mountains.
• The dancer’s movements undulated gracefully across the stage.
• The undulate leaves of the plant created interesting shadows.