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1. A timber that connects the keel and sternpost of a ship.
2. An arm extending to the rear of the keel to support the rudder and protect the propeller.
3. A fin projecting from the bottom of an outboard motor, used to protect the propeller and to provide extra steering control.
4. A centerboard mounted near the stern of a kayak, used to improve directional stability in windy weather.
5. A fin mounted near the tail of a surfboard, used to improve directional stability.
[Dutch scheg, perhaps from Old Norse skegg, beard, beak of a ship.]
1. (Nautical Terms) a reinforcing brace between the after end of a keel and the rudderpost
2. (Nautical Terms) a support at the bottom of a rudder
3. (Nautical Terms) a projection from the forefoot of a vessel for towing paravanes
4. (Nautical Terms) any short keel-like projection at the stern of a boat
5. (Nautical Terms) Austral a rear fin on the underside of a surfboard
[C16: of Scandinavian origin; compare Icelandic skegg cutwater]
1. a projection supporting a rudder at its lower end.
2. an extension of the keel of a small craft, designed to improve steering.
[1590–1600; < Dutch scheg cutwater]