# plunger

> moving cylindrical piston whose length is significantly greater than its diameter used to push or compress fluid

**Wikidata**: [Q2652083](https://www.wikidata.org/wiki/Q2652083)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Plunger_(hydraulics))  
**Source**: https://4ort.xyz/entity/plunger-q2652083