rudder
1.
(
noun
) (nautical) a hinged vertical plate mounted at the stern of a vessel and used to steer it
Related Words:
steering mechanism
,
steering system
2.
(
noun
) a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes
Related Words:
aerofoil
,
airfoil
,
control surface
,
surface
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