leeboard

[ lee-bawrd, -bohrd ]
/ ˈliˌbɔrd, -ˌboʊrd /

noun Nautical.

either of two broad, flat objects attached to the sides of a sailing ship amidships, the one on the lee side being lowered into the water to prevent the ship from making leeway.

Origin of leeboard

1400–50; late Middle English: the lee side of a ship; see lee1, board

Example sentences from the Web for leeboard

British Dictionary definitions for leeboard

leeboard
/ (ˈliːˌbɔːd) /

noun

nautical one of a pair of large adjustable paddle-like boards that may be lowered along the lee side to reduce sideways drift or leeway