fin keel

/fɪn kil/

Definitions of fin keel

1. noun

   a metal plate projecting from the keel of a shallow vessel to give it greater lateral stability
   types:

   centerboard, centreboard, drop keel, sliding keel

   a retractable fin keel used on sailboats to prevent drifting to leeward

   daggerboard

   a removable centerboard on a small sailboat that can be lowered into the water to serve as a keel

   type of:

   plate

   a sheet of metal or wood or glass or plastic