daggerboard
dag ger board |ˈdagərˌbôrd ˈdæɡərbɔrd | ▶noun a board that slides vertically through the keel of a sailboat to reduce sideways movement. Compare with centerboard.
dagger |board |ˈdagəbɔːd | ▶noun a kind of centreboard which slides vertically through the keel of a sailing boat.
The Wordsmith Dictionary
The Wordsmith Dictionary