bilge keel

noun

, Nautical.

1. either of two keellike projections extending lengthwise along a ship's bilge, one on each side, to retard rolling.

bilge keel

noun

1. one of two keel-like projections along the bilges of some vessels to improve sideways stability

Word History and Origins

Origin of bilge keel¹

First recorded in 1840–50

Example Sentences

An external bilge keel about 300 feet long and 25 inches deep was fitted along the bilge amidships.

From Project Gutenberg

If her bilge-keel doesn't cooper him, her port propeller will!

From Project Gutenberg