Definition

A chemical compound that has two oxygen atoms in each molecule.

Example

Carbon dioxide is produced when we breathe out.

Conversation

Did you know that dioxide is a key component of our atmosphere?

Yeah, I've heard of carbon dioxide, but I’m not sure how it affects us.

It’s interesting because it plays a role in climate change.

Exactly! We need to find ways to reduce carbon dioxide emissions.

Synonyms & Antonyms

Root Explanation

Dioxide → It is formed from "di-" (meaning two) and "oxide" (from the Greek "oxys", meaning acid or sharp, and "-ide", a suffix used in chemistry to denote a binary compound). The word "dioxide" refers to a chemical compound that contains two oxygen atoms.

Memory Tip

Think of 'di-' meaning two, and 'oxide' referring to a compound with oxygen. This helps you remember that dioxide is a compound with two oxygen atoms.

Visually Confused Words