1. a type of poplar tree with small rounded leaves that tremble in the wind

Examples

• The aspen leaves shimmered in the breeze.
• We hiked through a grove of tall aspens.
• The aspen’s white bark stood out against the dark pines.
• In autumn, the aspen trees turn brilliant gold.
• The sound of aspen leaves rustling was very peaceful.
• Many aspens grow in the Rocky Mountains.