1. very lightweight aircraft designed for recreational flying, typically with minimal structure and low power engines
Usage: aviation; plural form

Examples

• The pilot flew his ultralight over the countryside on a calm morning.
• Ultralights are popular among recreational aviators due to their low cost.
• The aviation club organized a fly-in event featuring dozens of ultralights.
• She earned her license to operate ultralights after completing the training course.
• Ultralights typically weigh less than 254 pounds when empty.
• The ultralight’s simple design makes it easy to maintain and repair.