# ionized

CEFR C1 · Adjective

Source: https://englishreference.com/word/ionized
Updated: 2026-10-18

## Definition

having an electric charge after gaining or losing very small parts called electrons. You use it for air, water, or gas changed in this way.

For teachers: converted into ions through gain or loss of electrons, thus carrying a net electric charge. Typically describes gases, liquids, or atoms altered by radiation, heat, or electric fields.

## Examples

- The filter cleans ionized air in the room.
- The lab uses ionized gas to clean tiny parts without harsh chemicals.
- Researchers studied ionized particles in the upper atmosphere to understand how solar storms disrupt radio signals.

## Usage notes

- Typically placed before the noun it modifies or after 'be'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.