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A movable keel in a sailboat that can be pivoted upward to reduce the boat's draft in shallow water.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈsɛn tərˌbɔrd, -ˌboʊrd)

a pivoted fin keel on a sailboat that can be retracted.
[1840–50, Amer.]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.centerboard - a retractable fin keel used on sailboats to prevent drifting to leeward
daggerboard - a removable centerboard on a small sailboat that can be lowered into the water to serve as a keel
fin keel - a metal plate projecting from the keel of a shallow vessel to give it greater lateral stability
sailboat, sailing boat - a small sailing vessel; usually with a single mast
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
My first didn't have a centerboard. I bought it for two dollars an' learned a lot, though it never stopped leaking.
Tinian and The Bomb: Project Alberta and Operation Centerboard. By Don A.
The centerboard of this administration's foreign policy team will remain Secretary of Defense Jim Mattis, still steady in balancing military policy.
Sailing canal boats featured the same box-shaped hulls as ordinary canal boats, but they were also equipped with masts, sails, and a centerboard keel so they could sail on open water.
Put the flippers or propeller unit down and in place--that's a centerboard. The rudder is already there for steering.
on August 9, 1945; operation Centerboard II, the mission to drop the second atomic bomb on a Japanese city, had begun.
"I left the centerboard slot and wooden centerboard, which has proven useful for shoving into the mud to balance the boat," he said.
When coupled in this way the assembly may be likened to a sailboat that has a sail and a centerboard, but no hull; except that the sail is no longer a sail but an airfoil, and the centerboard no longer a centerboard but a hydrofoil."
We have another separate business known as Quantum One Design which provides sails for one-design keel and centerboard boats internationally, with all designs and materials updated annually to a new series and model number from regattas sailed around the world with in-house designers competing at the events.
Fore, Miller & Schwartz is advising the purchasers, while Centerboard Securities LLC and Stites & Harbison PLLC are consulting the special committee.
Records and photographs reveal that more expensive purpose-built sailing dinghies were produced, complete with mast, rigging spars, jib boom, samson post, pin rail, centerboard and rudder, but it is not yet known in what proportion.
On one pre-excursion photo-op -- to show off the pedal-powered boat that will hopefully bring credibility and raise money -- Lewis and his partner, Steve Smith, forget the boat's centerboard, causing a collision with a concrete retaining wall and a humiliating newspaper headline.