centreboard centreboard


  • (n) a retractable fin keel used on sailboats to prevent drifting to leeward



  1. Mahogany over a steel frame, with keel, stem, and sternpost of wood, a dagger-plate centreboard streamlined and built of teak, plated with bronze.
  2. First they rip off each other's ruby-red ventral fins which look like a sailboat's centreboard.

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definition of centreboard


  • "It's a bit of a concern," Ainslie said. "It's just about getting to the size when it catches on your centreboard or rudder or you have to sail round it."
    on Aug 10, 2008 By: Ben Ainslie Source: Independent

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