Plimsoll mark


Definition of Plimsoll mark

: a load line or a set of load-line markings on an oceangoing cargo ship

called also Plimsoll line

Illustration of Plimsoll mark

Illustration of plimsoll mark

Plimsoll mark: TF tropical freshwater mark; F freshwater mark; T tropical load line; S summer load line; W winter load line; WNA winter load line, North Atlantic

First Known Use of Plimsoll mark

1884, in the meaning defined above

History and Etymology for Plimsoll mark

Samuel Plimsoll †1898 English shipping reformer

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The first known use of Plimsoll mark was in 1884

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Cite this Entry

“Plimsoll mark.” Dictionary, Merriam-Webster, Accessed 3 Jul. 2020.

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