rudder
noun Etymology: Middle English rother, from Old English rōther paddle; akin to Old English rōwan to row Date: 14th century 1. an underwater blade that is positioned at the stern of a boat or ship and controlled by its helm and that when turned causes the vessel's head to turn in the same direction 2. a movable auxiliary airfoil on an airplane usually attached at the rear end that serves to control direction of flight in the horizontal plane — see airplane illustration 3. a guiding force or strategy • rudderless adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Rudder — Rud der, n. [OE. rother, AS. r[=o][eth]er a paddle; akin to D. roer rudder, oar, G. ruder, OHG. roadar, Sw. roder, ror, Dan. roer, ror. [root] 8. See {Row} to propel with an oar, and cf. {Rother}. ] 1. (Naut.) The mechanical appliance by means of …   The Collaborative International Dictionary of English

  • Rudder — ist der Name folgender Personen: David Rudder (* 1953), Komponist und Sänger in den Genres Calypso und Soca James Earl Rudder (1910–1970), US amerikanischer Militär, Politiker und Hochschulpräsident Diese Seite ist eine Begriffskläru …   Deutsch Wikipedia

  • Rudder — Rud der, n. A riddle or sieve. [Prov. Eng.] [1913 Webster] …   The Collaborative International Dictionary of English

  • rudder — O.E. roðor paddle, oar, from P.Gmc. *rothru (Cf. O.Fris. roder, M.L.G. roder, M.Du. roeder, Du. roer, O.H.G. ruodar, Ger. Ruder oar ), from *ro steer (see ROW (Cf. row) (v.)) + suffix …   Etymology dictionary

  • rudder — ► NOUN 1) a flat piece hinged vertically near the stern of a boat for steering. 2) a vertical aerofoil pivoted from the tailplane of an aircraft, for controlling movement about the vertical axis. ORIGIN Old English, «paddle, oar» …   English terms dictionary

  • rudder — [rud′ər] n. [ME rother < OE; akin to Ger ruder: see ROW2] 1. a broad, flat, movable piece of wood or metal hinged vertically at the stern of a boat or ship, used for steering 2. a movable piece attached to the vertical stabilizer of an… …   English World dictionary

  • Rudder — A rudder is a device used to steer a ship, boat, submarine, hovercraft, or other conveyance that move through a fluid (generally air or water). On an aircraft the rudder is used primarily to counter adverse yaw and p factor and is not the primary …   Wikipedia

  • rudder — ruddered, adj. rudderless, adj. rudderlike, adj. /rud euhr/, n. 1. Naut. a vertical blade at the stern of a vessel that can be turned horizontally to change the vessel s direction when in motion. 2. Aeron. a movable control surface attached to a… …   Universalium

  • rudder — The primary vertical and movable control surface, which is hinged to the fin and primarily controls the yawing movement of the aircraft. The rudder is moved by foot operated pedals (called rudder pedals) in the cockpit. A rudder application… …   Aviation dictionary

  • Rudder — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. James Earl Rudder était un militaire américain lors de la seconde guerre mondiale. Pieter De Rudder, en français Pierre De Rudder, ouvrier agricole, né à… …   Wikipédia en Français

  • rudder — noun a) 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). b) A control surface on the vertical stabilizer of …   Wiktionary

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