01 A mark conspicuously painted on the port side of all British sea-going merchant vessels, to indicate the limit of submergence allowed by la…
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1.
A mark conspicuously painted on the port side of all British sea-going merchant vessels, to indicate the limit of submergence allowed by law; -- so called from Samuel Plimsoll, by whose efforts the act of Parliament to prevent overloading was procured.(Naut.)