Plunger (disambiguation)

A plunger is a device that is used to release stoppages in plumbing.

Plunger may also refer to:

Science and technology

Plunger or blasting machine, used to detonate explosives
Plunger (hydraulics), a cylindrical piston-like component whose length is larger than its diameter
Plunger, a component of a syringe (though in modern syringes, it is actually a piston)
Plunger pump, type of positive displacement pump with stationary seal and a smooth cylindrical plunger, suitable for higher pressures
Plunger suspension, used on motorcycles before and immediately after World War II
Plunger brake or spoon brake, probably the first type of bicycle brake
Plunger lift, a natural gas well deliquification techniques
Plunger mute, the rubber part of a plumbing plunger, or a similar device, used as a musical mute
Spring plunger, spring-loaded device for indexing, locating, positioning or locking components against a tip, pin, or ball using spring force
Plunger (pinball), a spring-loaded rod used to launch balls in pinball