Plimsoll mark

Plim·soll mark  (plmsl, -sôl)

n.

Any of a set of lines on the hull of a merchant ship that indicate the depth to which it may be legally loaded under specified conditions. Also called load line, Plimsoll line.

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[After Samuel Plimsoll (1824-1898), British merchant and shipping reformer.]

Thesaurus

Noun

1.

Plimsoll mark - waterlines to show the level the water should reach when the ship is properly loaded load line, Plimsoll, Plimsoll line water line, waterline, water level - a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship