# tarnish

> thin layer of corrosion that forms over copper, brass, aluminum, magnesium, neodymium and other similar metals as their outermost layer undergoes a chemical reaction

**Wikidata**: [Q445686](https://www.wikidata.org/wiki/Q445686)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tarnish)  
**Source**: https://4ort.xyz/entity/tarnish


## References

1. KBpedia
2. GF WordNet
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)