Plimsoll line(redirected from Plimsoll marks)
Also found in: Thesaurus.
Related to Plimsoll marks: Plimsoll line
(Nautical Terms) another name for load line
[C19: named after Samuel Plimsoll (1824–98), MP, who advocated its adoption]
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|Noun||1.||Plimsoll line - waterlines to show the level the water should reach when the ship is properly loaded|