Ionized

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Astrophysics

The state in which an atom is missing on or more of its electrons, and is therefore positively charged. An ionized gas is one in which some or all of the atoms are ionized, rather than electrically neutral. The ionized electrons behave as free particles in this gas.

Lawrence Berkeley National Laboratory's Physics Division — Microwave Anisotropy Probe Glossary of Technical Terms retrieved 2014-05-20