pin mark
noun
Definition of pin mark
1 : a slight indentation in the side of a piece of foundry type made by the pin that pushes the type from the mold
2 : the mark on the bottom of a piece of ceramic ware made by a pin supporting it during firing
From the M-W Editors
There's more!
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up pin mark? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!