The definition of a rudder is a moveable flat and wide piece of wood or metal used for steering or directing.noun
An example of a rudder is what helps an aircraft direct its course from left to right.YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
- a broad, flat, movable piece of wood or metal hinged vertically at the stern of a boat or ship, used for steering
- a movable piece attached to the vertical stabilizer of an aircraft, etc., used for controlling direction to the left or right
- something serving to guide, direct, or control
Origin: ME rother < OE; akin to Ger ruder: see row
- rudderless adjective
Used by arrangement with John Wiley & Sons, Inc.
- a. A vertically hinged plate of metal, fiberglass, or wood mounted at the stern of a ship or boat for directing its course.b. A similar structure at the tail of an aircraft, used for effecting horizontal changes in course.
- A controlling agent or influence over direction; a guide.
Origin: Middle English ruder, from Old English rōther, steering oar; see erə- in Indo-European roots.