Definition

To remove ions from a substance, usually water, making it free of charged particles.

Example

The laboratory technician needed to deionise the water before conducting the experiment.

Tense Forms

Conversation

Have you ever tried to deionise water for your fish tank?

No, I haven't, but I heard it's really important for their health.

Yeah, it helps remove harmful minerals and chemicals.

That makes sense! I should definitely look into how to do it.

Synonyms & Antonyms

Root Explanation

Deionise → It is formed from "de-" (meaning removal or reversal) and "ion" (from Greek "ion", meaning going or to go, referring to charged particles) and "-ise" (a suffix used to form verbs). The word "deionise" means to remove ions from a substance, particularly water, reversing the presence of charged particles.

Memory Tip

Think of 'removing' ('de-') 'charged particles' ('ion') from a substance — that's what deionise means.

Visually Confused Words