The meaning of DIOXIDE is an oxide (such as carbon dioxide) containing two atoms of oxygen in the molecule.

Carbon dioxide is a chemical compound with the chemical formula CO2. It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in a gas state …

DIOXIDE definition: 1. a chemical substance consisting of two atoms of oxygen combined with one atom of another…. Learn more.

DIOXIDE definition: an oxide containing two atoms of oxygen, each of which is bonded directly to an atom of a second element, as manganese dioxide, MnO 2 , or nitrogen dioxide, NO 2 . See …

Dec 31, 2025 · Carbon dioxide, a colorless gas having a faint sharp odor and a sour taste. It is a greenhouse gas, but it is a minor component of Earth’s atmosphere, formed in combustion of carbon …

Definition of dioxide noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

May 21, 2025 · Highlights Each year, human activities release more carbon dioxide into the atmosphere than natural processes can remove, causing the amount of carbon dioxide in the atmosphere to …

Define dioxide. dioxide synonyms, dioxide pronunciation, dioxide translation, English dictionary definition of dioxide. n. A compound with two oxygen atoms per molecule. American Heritage® Dictionary of …

Dec 14, 2025 · Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste oxygen …

A molecule of carbon dioxide (CO 2) is made up of one carbon atom and two oxygen atoms. Carbon dioxide is an important greenhouse gas that helps to trap heat in our atmosphere.