otter board
noun Nautical.
one of a pair of large, heavy, square or rectangular plates or boards of metal or weighted wood attached to the trawl lines on each side of the mouth of a trawl net to maintain lateral spread during trawling.
Origin of otter board
First recorded in 1765–75
Words nearby otter board
ottar,
ottava,
ottava rima,
ottawa,
otter,
otter board,
otter hound,
otter shell,
otter shrew,
otter trawl,
otterbein