# Retarder

> Device used to slow railroad cars in classification yards

**Wikidata**: [Q1530499](https://www.wikidata.org/wiki/Q1530499)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Retarder_(railroad))  
**Source**: https://4ort.xyz/entity/retarder-q1530499


## References

1. Freebase Data Dumps. 2013