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keelson

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keel⋅son

[kel-suhn, keel-]
–noun Nautical.
any of various fore-and-aft structural members lying above or parallel to the keel in the bottom of a hull.
Also, kelson.


Origin:
1605–15; < LG kielswin lit., keel swine (sense relation obscure) < Scand; cf. D kolsvijn, Dan kølsvin, Sw kölsvin
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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keel·son   (kēl'sən, kěl'-)   
n.   Nautical
A timber or girder fastened above and parallel to the keel of a ship or boat for additional strength.

[Alteration (influenced by keel1) of Middle English kelswin, probably from Old Norse *kjölsvīn : kjölr, keel + svīn, swine, timber; see sū- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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