keel·​son ˈkel-sən How to pronounce keelson (audio) ˈkēl- How to pronounce keelson (audio)
: a longitudinal structure running above and fastened to the keel of a ship in order to stiffen and strengthen its framework

Word History


Middle English kelswayn, probably of Scandinavian origin; akin to Swedish kölsvin keelson

First Known Use

13th century, in the meaning defined above

Time Traveler
The first known use of keelson was in the 13th century

Dictionary Entries Near keelson

Cite this Entry

“Keelson.” Dictionary, Merriam-Webster, Accessed 29 Sep. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!