# Auxetics

> Materials that have a negative Poisson's ratio

**Wikidata**: [Q789683](https://www.wikidata.org/wiki/Q789683)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Auxetics)  
**Source**: https://4ort.xyz/entity/auxetics


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)