# mean lifetime

> in nuclear physics, the reciprocal of the decay constant

**Wikidata**: [Q1758559](https://www.wikidata.org/wiki/Q1758559)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mean_lifetime)  
**Source**: https://4ort.xyz/entity/mean-lifetime


## References

1. ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics
2. International Electrotechnical Vocabulary