# negative mass

> hypothetical type of exotic matter whose mass is of opposite sign to the mass of normal matter

**Wikidata**: [Q6987233](https://www.wikidata.org/wiki/Q6987233)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Negative_mass)  
**Source**: https://4ort.xyz/entity/negative-mass


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)