aileron

English Thesaurus

1. an airfoil that controls lateral motion (noun.artifact)

hypernym	:	aerofoil, airfoil, control surface, surface,
definition	:	a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight (noun.artifact)

part meronym	:	wing,
definition	:	one of the horizontal airfoils on either side of the fuselage of an airplane (noun.artifact)