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centreboard

British  
/ ˈsɛntəˌbɔːd /

noun

  1. a supplementary keel for a sailing vessel, which may be adjusted by raising and lowering Compare daggerboard

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Mahogany over a steel frame, with keel, stem, and sternpost of wood, a dagger-plate centreboard streamlined and built of teak, plated with bronze.

From Time Magazine Archive

First they rip off each other's ruby-red ventral fins which look like a sailboat's centreboard.

From Time Magazine Archive

Lord Torrington stepped carefully on board and settled himself crouched into a position undignified for a member of the Cabinet, on the side of the centreboard case recommended by Peter Walsh.

From Priscilla's Spies by Birmingham, George A.

J. W. Edwards, 197 Hamilton Ave., Brooklyn, N.Y., a 16-foot flat-bottomed skiff with centreboard, sail, oars and oarlocks, for a 46 or 48-inch rubber-tired steel-spoked bicycle.

From Golden Days for Boys and Girls Volume VIII, No 25: May 21, 1887 by Elverson, James

Take up the flooring and give the inside of your boat a couple of good coats of paint, devoting particular attention to the centreboard trunk where it joins the keelson.

From Harper's Round Table, September 3, 1895 by Various

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