1. Plural of flaperon; hinged control surfaces on aircraft wings that combine the functions of flaps and ailerons, used to control both lift and roll.
Usage: aviation/aeronautical term; technical

Examples

• The aircraft's flaperons adjusted automatically during takeoff to increase lift.
• Modern gliders often use flaperons to improve maneuverability and efficiency.
• The pilot deployed the flaperons to slow the descent rate.
• Flaperons are more efficient than separate flaps and ailerons on some aircraft designs.