Definition of fin keel
1 : a plate of metal fixed to the keel of a shallow boat to provide lateral resistance usually supplemented by a cigar-shaped bulb of lead to provide stability
2 : a long narrow and shallow ship (as a yacht) fitted with a fin keel and lead bulb
3 : a yacht with shallow body carried down in an extension of wood or metal which in turn carries a metal keel
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up fin keel? Please tell us where you read or heard it (including the quote, if possible).