# onium

> bound state of a particle and its antiparticle

**Wikidata**: [Q279525](https://www.wikidata.org/wiki/Q279525)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Onium)  
**Source**: https://4ort.xyz/entity/onium


## References

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