pin mark

American  

noun

1. the circular indentation on the upper part of a type body, made by the pin that ejects the type from the caster.

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Etymology

Origin of pin mark

First recorded in 1885–90

Example Sentences

"My guess would be that Ukraine will become unavailable pretty soon if what we've seen over the weekend crystallises into a couple of more carriers actually pulling the pin," Mark Zee, founder of flight operations advisory firm OPSGROUP, said.

From Reuters

In the Spiel, Congress failed to pin Mark Zuckerberg down.

From Slate

Put sugar in, and scald it as though white, and, with a pin, mark your white ones before you pin them up.

From Project Gutenberg