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Definition of keelson

keelson

/ˈkiːlsən/
keel · son
Plural:keelsons
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keelson Lexical Profile

keelson Game Scores & Validity

• noun

1

A longitudinal structural timber or steel beam firmly fastened above the keel of a ship, running parallel to it to stiffen and strengthen the vessel's framework.

Example

"The shipwrights carefully bolted the heavy oak keelson over the floor timbers to ensure the hull could withstand punishing ocean waves."

Synonyms
View all synonyms for keelson

• Nearby Words

keelback
keeled
keeled rat snake
keelson
keen
keener
keening

Word Origin & Etymology

Early 17th century: from Scandinavian sources, such as Swedish 'kölsvin' or Norwegian 'kjølsvill' (literally 'keel sill' or 'keel swine'), which was later altered in English by association with the word 'son'.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Keelson. In Wordmom Dictionary. Retrieved Nov 2, 2026, from https://wordmom.com/dictionary/keelson
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