D defs.my
Entry 1 sense Webster, 1913

Leeboard

/(lē"bōrd`)/ · Lee·board · IPA
01 n. A board, or frame of planks, lowered over the side of a vessel to lessen her leeway when closehauled, by giving her greater draught.
  1. 1.
    A board, or frame of planks, lowered over the side of a vessel to lessen her leeway when closehauled, by giving her greater draught.