# ionizing

/ˈaɪəˌnaɪzɪŋ/ (US) · CEFR C1 · Verb

Source: https://englishreference.com/word/ionizing
Updated: 2026-05-27

## Definition

describing radiation or energy that has enough power to remove electrons from atoms. This process can change the chemical structure of matter.

For teachers: relating to or causing the removal of electrons from atoms or molecules, resulting in the formation of ions. Often describes high-energy radiation or electrical discharges.

## Examples

- Ionizing radiation can be harmful to living cells.
- The detector is designed to measure ionizing radiation levels in the atmosphere to ensure public safety.
- While non-ionizing radiation like visible light is generally harmless, ionizing radiation from X-rays or cosmic rays has enough energy to disrupt molecular bonds and cause cellular damage.

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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.
