Noun
English Wikipedia has an article on:plasmoidWikipedia
plasmoid (plural plasmoids)
(physics) A region of plasma held relatively stable within a magnetic field
Thus the lifetime of a plasmoid is expected to be on the order of the acoustic (or Alfvén) transit time. Source: Internet
Finally, p ik is the fluid-pressure tensor expressed in the local moving coordinate system : and T ik is the electromagnetic stress tensor, : A plasmoid is a finite configuration of magnetic fields and plasma. Source: Internet
Sakharov then tested a MK-driven "plasma cannon" where a small aluminum ring was vaporized by huge eddy currents into a stable, self-confined toroidal plasmoid and was accelerated to 100 km/s. Source: Internet