Quasi-neutrality (quasi, from the Latin, "as if", "resembling") describes the apparent charge neutrality of a plasma overall, while at smaller scales, the positive and negative charges making up the plasma, may give rise to charged regions and electric fields.
Since electrons are very mobile, plasmas are excellent conductors of electricity, and any charges that develop are readily neutralized, and in many cases, plasmas can be treated as being electrically neutral. The term is sometimes written without the hyphen, i.e., quasineutrality, and even sometimes as two words, i.e., quasi neutrality. http://www.plasma-universe.com/index.php/Quasi-neutrality

See Also

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3.14 - Vortex Theory of Atomic Motions
13.04 - Atomic Subdivision
Atomic
Atomic Cluster X-Ray Emission
Atomic Clusters
Atomic Force
atomic mass
atomic number
atomic theory
atomic triplet
atomic weight
Debye length
Debye length in a plasma
Debye length in an electrolyte
diatomic
Etheric Orbital Rotations
Figure 13.06 - Atomic Subdivision
Force-Atomic
Formation of Atomic Clusters
Inert Gas
Interaction of Intense Laser Pulses with Atomic Clusters - Measurements of Ion Emission Simulations and Applications TD69.pdf
InterAtomic
Laser Cluster Interactions
Law of Atomic Dissociation
Law of Atomic Pitch
Law of Oscillating Atomic Substances
Law of Pitch of Atomic Oscillation
Law of Variation of Atomic Oscillation by Electricity
Law of Variation of Atomic Oscillation by Sono-thermism
Law of Variation of Atomic Oscillation by Temperature
Law of Variation of Atomic Pitch by Electricity and Magnetism
Law of Variation of Atomic Pitch by Rad-energy
Law of Variation of Atomic Pitch by Temperature
Law of Variation of Pitch of Atomic Oscillation by Pressure
Models of Laser Cluster Interactions
monatomic
Nanoplasma
Plasma
Plasma holes
Quasi-neutrality
Quasi-neutrality and Debye length
Violation of quasi-neutrality