1. the stalks that attach leaves to stems or branches
Usage: botanical term; plural of petiole

Examples

• The botanist examined the petioles to identify the plant species.
• Maple leaves have long petioles that allow them to flutter in the breeze.
• The petioles of these plants are unusually thick and sturdy.
• Students learned to distinguish between petioles and leaf blades in biology class.
• The gardener noticed that the petioles were turning yellow, indicating a nutrient deficiency.
• Some leaves attach directly to stems without petioles.