bilge keel

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bilge keel

n. Nautical

Either of two beams or fins fastened lengthwise along the outside of a ship's bilge to inhibit heavy rolling.

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.

bilge keel

(Nautical Terms) one of two keel-like projections along the bilges of some vessels to improve sideways stability

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

bilge′ keel`

a keellike projection along a ship's bilge to retard rolling.

[1840–50]

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Noun

bilge keel - either of two lengthwise fins attached along the outside of a ship's bilge; reduces rolling

keel - one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability

vessel, watercraft - a craft designed for water transportation

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