B1nounscienceenvironment
US/daɪˈɑːk.saɪd/
UK/daɪˈɒk.saɪd/
a chemical with two oxygen atoms joined to another atom, as in the gas CO2
In context
Cars and factories release large amounts of carbon dioxide into the air.
Trees absorb carbon dioxide and help slow climate change.
Sulfur dioxide from coal plants can cause acid rain.
Words that go with dioxide
noun + noun
- carbon dioxideCarbon dioxide is the main greenhouse gas.
- carbon dioxide emissionsThe country promised to cut carbon dioxide emissions.
- sulfur dioxideSulfur dioxide smells like burnt matches.
- nitrogen dioxideTraffic is the main source of nitrogen dioxide in cities.
noun + preposition
- levels of carbon dioxideLevels of carbon dioxide in the air keep rising.