(nautical) An underwater vane used to steer a vessel. The rudder is controlled by means of a wheel, tiller or other apparatus (modern vessels can be controlled even with a joystick or an autopilot).

plural of rudder

Having a rudder or rudders.

(aviation) The degree of control that the rudder can exert over the yawing motion of an aircraft; related to rudder design and airspeed.

Any of various unrelated fish that have the habit of following ships / Centrolophus niger, a medusafish, the only member of the genus Centrolophus.

In a rudderless way.

(nautical) The shank of a rudder, having the blade at one end and the attachments for operating it at the other.

(nautical) The main part or blade of the rudder, which is connected by hinges, or similarly, with the sternpost of a vessel.

plural of rudderstock

plural of rudderpost