fin keel


noun Nautical.

a finlike projection extending downward from the keel of a sailboat, serving to prevent lateral motion and acting as additional ballast.

Example sentences from the Web for fin keel

  • As to whether a fin-keel or a weighted centreboard is the better, he has not yet made up his mind.

    Yachting Vol. 2 |Various.
  • The fin-keel requires great depth if it is to be of any real use, and it is in this particular point that small yachts suffer.

    Yachting Vol. 1 |Various.
  • The shark-bodied cutter, with her fin-keel below and her balloon above, was indeed now moving toward a position above the cruiser.

British Dictionary definitions for fin keel

fin keel

noun

a projection from the keel of a vessel to give it additional stability