deionised
Intermediate (B1)
IPA: /diˈaɪənaɪzd/
KK: /diˈaɪənaɪzd/
adjective
Definition
Describing water or another liquid that has had its ions removed, making it pure and free from charged particles.
Example
The laboratory used deionised water for all its experiments to ensure accurate results.
Conversation
Have you ever used deionised water for your plants?
No, I haven't. What's special about it?
It's supposed to be better because it doesn't have any impurities.
That sounds interesting! I might try it out.
Synonyms & Antonyms
Synonyms
purified
filtered
refined
Antonyms
contaminated
impure
unclean
verb
Definition
To remove ions from a substance, usually water, making it free of charged particles.
Example
The laboratory used deionised water for the experiments to ensure accuracy.
Tense Forms
Past: deionised
Past Participle: deionised
Conversation
Hey, did you remember to use the deionised water for the experiment?
Yes, I deionised it yesterday, so it should be fine.
Great! I hope that helps with the results.
Root Explanation
Deionised → It is formed from "de-" (meaning removal) and "ion" (from Greek "ion", meaning going or to go, referring to charged particles) and "-ised" (a suffix indicating the process of making). The word "deionised" means the process of removing ions from a substance, particularly water.
Memory Tip
Think of 'removing' ('de-') 'charged particles' ('ion') from a substance — that's what deionised means.
Visually Confused Words
dionise