centreboard
noun
Forms centreboards centre-board centre board centerboard center-board center board
- noun (British spelling, nautical) The adjustable keel on a small yacht or dinghy that acts, among other things, as ballast and to counteract the sideways force of the wind.
Synonyms
Etymology
From centre + board.
Webster’s 1913
- noun A movable or sliding keel formed of a broad board or slab of wood or metal which may be raised into a water-tight case amidships, when in shallow water, or may be lowered to increase the area of lateral resistance and prevent leeway when the vessel is beating to windward. It is used in vessels of all sizes along the coast of the United States
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “centreboard”, CC BY-SA 4.0. Details