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carbon dioxide
–noun
| 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. |
] | Dictionary.com Unabridged (v 1.1) Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006. |
Carbon dioxide
To learn more about Carbon dioxide visit Britannica.com
| © 2008 Encyclopædia Britannica, Inc. |
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| carbon dioxide
n. A colorless, odorless, incombustible gas, CO2, formed during respiration, combustion, and organic decomposition and used in food refrigeration, carbonated beverages, inert atmospheres, fire extinguishers, and aerosols. Also called carbonic acid gas. |
| The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2006 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
| carbon dioxide | |
noun | |
| a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis |
| WordNet® 3.0, © 2006 by Princeton University. |
carbon dioxide [daiˈoksaid]
a gas present in the air, breathed out by man and other animals
See also: carbon, carbon copy, carbon monoxide, carbon paper
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| Kernerman English Multilingual Dictionary, © 2000-2006 K Dictionaries Ltd. |
| carbon dioxide
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. |
| The American Heritage® Science Dictionary Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
carbon dioxide (CO8)
A compound made up of molecules containing one carbon atom and two oxygen atoms.
Note: Carbon dioxide is normally found as a gas that is breathed out by animals and absorbed by green plants. The plants, in turn, return oxygen to the atmosphere. (See carbon cycle and respiration.)
Note: Carbon dioxide is also given off in the burning of fossil fuels (see greenhouse effect).
[Chapter:] Physical Sciences and Mathematics
| The American Heritage® New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
carbon dioxide n.
A colorless, odorless, incombustible gas formed during respiration, combustion, and organic decomposition and used in inert atmospheres, fire extinguishers, and aerosols.
| The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
Main Entry: carbon dioxide
Function: noun
: a heavy colorless gas CO2 that does not support combustion, dissolves in water to form carbonic acid, is formedespecially in animal respiration and in the decay or combustion of animal and vegetable matter, is absorbed from the air by plants in photosynthesis, and is used in the carbonation of beverages
| Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc. |
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