microtaggant
/ˈmaɪkroʊˌtæɡənt/
noun
- A tiny particle or substance used to mark or identify something, often for security or tracking purposes.
- Security experts use a microtaggant in the ink of valuable documents to prevent counterfeiting.
- The company added a microtaggant to its explosives so they could be traced after an explosion.
- The paint on the museum's artifacts contains a microtaggant that helps identify stolen items.