either of two keellike projections extending lengthwise along a ship's bilge, one on each side, to retard rolling.
Origin of bilge keel
First recorded in 1840–50
Also called bilge piece.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for bilge keel
If her bilge-keel doesn't cooper him, her port propeller will!Blow The Man Down|Holman Day
British Dictionary definitions for bilge keel
one of two keel-like projections along the bilges of some vessels to improve sideways 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