Definitions for

Overview of noun ion

The noun ion has 1 senses? (first 1 from tagged texts)
1. (8) ion

(a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons) © 2001-2013, Demand Media, all rights reserved. The database is based on Word Net a lexical database for the English language. see disclaimer
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