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bilge keel
noun
, Nautical.
- either of two keellike projections extending lengthwise along a ship's bilge, one on each side, to retard rolling.
bilge keel
noun
- one of two keel-like projections along the bilges of some vessels to improve sideways stability
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Word History and Origins
Origin of bilge keel1
First recorded in 1840–50
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