plimsoll mark
noun phrase
Meaning
A faint, circular or oval-shaped discoloration or indentation left on a surface, typically a floor, by the sole of a plimsoll or similar soft-soled shoe, especially after being worn or rubbed.
Examples
- The caretaker tried to scrub away the stubborn plimsoll mark from the gymnasium floor.
- After hours of dancing, the ballroom floor was covered in countless plimsoll marks.
Synonyms: scuff mark, smudge, residue