Definition of rudder noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈrʌdə(r)//
; NAmE NAmE//ˈrʌdər//
Parts of a plane
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a piece of wood or metal at the back of a boat or an aircraft that is used for controlling its direction See related entries: Parts of a plane Word OriginOld English rōther ‘paddle, oar’, of West Germanic origin; related to Dutch roer, German Ruder, also to the verb row1.
See the Oxford Advanced American Dictionary entry: rudder