bilge pump

noun

Definition of bilge pump 

: a pump used to clear bilge water The 20-foot bass fishing boat was swamped by a wave that came over the stern and overwhelmed the bilge pumpToledo Blade, 3 June 2011 Most kayakers in the United States still rely on the ubiquitous cylindrical plastic bilge pump. These are simple and reliable, and move a lot of water.— Jonathan Hanson, Complete Sea Kayak Touring, 2006

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First Known Use of bilge pump

1730, in the meaning defined above

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The first known use of bilge pump was in 1730

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