regrind
/ˈriːɡraɪnd/Definitions
1. noun
a mixture of material, especially metal, that has been re-melted and re-cast after being re-melted and re-cast once before.
“The manufacturer sent the regrind of metal to be melted again and used in making new products.”
2. verb
to grind or crush something again, especially to break it down into smaller pieces for reprocessing or reuse.
“The workers regrind the leftover wood to make it into pulp for paper production.”