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
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
Learn More About Plimsoll mark
Statistics for Plimsoll mark
Look-up Popularity
Cite this Entry
“Plimsoll mark.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Plimsoll%20mark. Accessed 12 Aug. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Odd Habits and Quirks
-
- Which of the following best describes an easily irritated person?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Name That Animal: Volume 2
Can you tell a meerkat from a wombat?
Take the quiz
-
Fashionable Words
A vocab quiz with panache
Take the quiz
-
True or False?
Test your knowledge - and maybe learn something a...
Take the quiz
-
Spelling Bee Quiz
Can you outdo past winners of the National Spelli...
Take the quiz
Share Plimsoll mark
Time Traveler for Plimsoll mark
The first known use of Plimsoll mark was in 1884
See more words from the same year