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fin keel

noun, Nautical
1.
a finlike projection extending downward from the keel of a sailboat, serving to prevent lateral motion and acting as additional ballast.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for fin keel
  • The new cup-defender will be to all intents and purposes a big fin keel.
  • The fin keel is getting a heavy rubbing with soft emory cloth.
British Dictionary definitions for fin keel

fin keel

noun
1.
a projection from the keel of a vessel to give it additional stability
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
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