Bible Dictionaries
Plimsoll's Mark

Webster's Dictionary

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.

Bibliography Information
Webster, Noah. Entry for 'Plimsoll's Mark'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/plimsolls-mark.html. 1828.