Definition of samuel plimsoll in English English dictionary
born Feb. 10, 1824, Bristol, Gloucestershire, Eng. died June 3, 1898, Folkestone, Kent British reformer. A London coal merchant, he served in Parliament (1868-80). With his book Our Seamen (1873), he helped overcome resistance to the Merchant Shipping Act, which instituted such reforms as the loading limit for cargo ships. A load line (the Plimsoll mark or line) was marked on the hull of every cargo ship, indicating the maximum depth to which the ship could be safely loaded