# carbon dioxide

> English word · Noun · IPA /ˌkɑː.bən daɪˈɒk.saɪd/

## Definitions
1. The normal oxide of carbon, CO₂; a colorless, odorless gas formed during respiration and combustion and consumed by plants during photosynthesis.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/carbon-dioxide