verb

ionize

to ionise, to ionize

High energy can ionize atoms.

High energy can ionise atoms.

The gas begins to ionize at high temperatures.

The gas begins to ionise at high temperatures.

((sth.)) to convert (an atom, molecule, or substance) into an ion or ions High energy can ionise atoms.

Synonyms: charge, electrify; Antonyms: neutralize, deionize

From 'ion' + the verb-forming suffix '-ize', meaning 'to make into'.

The suffix '-ize' often means 'to make into'. So, to 'ionize' something is to make it into an 'ion'.

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