magnetic bottle
Noun
Meaning
container consisting of any configuration of magnetic fields used to contain a plasma during controlled thermonuclear reactions
Source: WordNetHypernyms
Examples
Magnetic bottles This image shows how a charged particle will corkscrew along the magnetic fields inside a magnetic bottle, which is two magnetic mirrors placed close together.
A magnetic bottle is two magnetic mirrors placed close together.
For example, two parallel coils separated by a small distance, carrying the same current in the same direction will produce a magnetic bottle between them.