# echo chamber

> hollow enclosure used to produce reverberated sounds

**Wikidata**: [Q1183986](https://www.wikidata.org/wiki/Q1183986)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Echo_chamber)  
**Source**: https://4ort.xyz/entity/echo-chamber-q1183986


## References

1. Freebase Data Dumps. 2013