- a colorless, odorless, incombustible gas, CO2, present in the atmosphere and formed during respiration, usually obtained from coal, coke, or natural gas by combustion, from carbohydrates by fermentation, by reaction of acid with limestone or other carbonates, or naturally from springs: used extensively in industry as dry ice, or carbon dioxide snow, in carbonated beverages, fire extinguishers, etc.
Origin of carbon dioxide
Examples from the Web for carbon dioxide
And if the buses are fueled with biodiesel, carbon-dioxide emissions would be cut by 90 percent.Volvo Tests Ultra-Efficient Plug-in Hybrid-Electric Diesel Bus
May 17, 2013
The reduction of the carbon-dioxide would be even more gradual.The Story of Evolution
Then air-rejuvenator apparatus reseparated it from the carbon-dioxide you exhaled, so that you could use it over and over.Comet's Burial
Raymond Zinke Gallun
A part is expelled by the lungs as carbon-dioxide, or as it is generally though less correctly termed, carbonic acid.The Chemistry of Food and Nutrition
A. W. Duncan
Every molecule of carbon-dioxide that crystallized out took two atoms of oxygen with it, completely out of circulation.Let'em Breathe Space
Lester del Rey
In the form of carbon-dioxide the leaves eat up the carbon and oxygen from the atmosphere.Beautiful Bulbous Plants
- a colourless odourless incombustible gas present in the atmosphere and formed during respiration, the decomposition and combustion of organic compounds, and in the reaction of acids with carbonates: used in carbonated drinks, fire extinguishers, and as dry ice for refrigeration. Formula: CO 2Also called: carbonic-acid gas
Word Origin and History for carbon dioxide
1869, so called because it consists of one carbon and two oxygen atoms. The chemical was known since mid-18c. under the name fixed air; later as carbonic acid gas (1791). "The term dioxide for an oxide containing two atoms of oxygen came into use in the middle of the 19th century." [Flood].
- A colorless, odorless, incombustible gas formed during respiration, combustion, and organic decomposition and used in inert atmospheres, fire extinguishers, and aerosols.
- A colorless, odorless gas that is present in the atmosphere and is formed when any fuel containing carbon is burned. It is breathed out of an animal's lungs during respiration, is produced by the decay of organic matter, and is used by plants in photosynthesis. Carbon dioxide is also used in refrigeration, fire extinguishers, and carbonated drinks. Chemical formula: CO2.