Definitions for carbon dioxide
car·bon diox·ide

Princeton's WordNetRate this definition:0.0 / 0 votes

1. carbon dioxide, CO2, carbonic acid gasnoun

   a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis

WiktionaryRate this definition:1.0 / 1 vote

1. carbon dioxidenoun

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

WikipediaRate this definition:0.0 / 0 votes

1. Carbon dioxide

   Carbon dioxide (chemical formula CO2) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas. It is a trace gas in Earth's atmosphere at 421 parts per million (ppm), or about 0.04% by volume (as of May 2022), having risen from pre-industrial levels of 280 ppm. Burning fossil fuels is the primary cause of these increased CO2 concentrations and also the primary cause of climate change. Carbon dioxide is soluble in water and is found in groundwater, lakes, ice caps, and seawater. When carbon dioxide dissolves in water, it forms carbonate and mainly bicarbonate (HCO−3), which causes ocean acidification as atmospheric CO2 levels increase.As the source of available carbon in the carbon cycle, atmospheric CO2 is the primary carbon source for life on Earth. Its concentration in Earth's pre-industrial atmosphere since late in the Precambrian has been regulated by organisms and geological phenomena. Plants, algae and cyanobacteria use energy from sunlight to synthesize carbohydrates from carbon dioxide and water in a process called photosynthesis, which produces oxygen as a waste product. In turn, oxygen is consumed and CO2 is released as waste by all aerobic organisms when they metabolize organic compounds to produce energy by respiration. CO2 is released from organic materials when they decay or combust, such as in forest fires. Since plants require CO2 for photosynthesis, and humans and animals depend on plants for food, CO2 is necessary for the survival of life on earth. Carbon dioxide is 53% more dense than dry air, but is long lived and thoroughly mixes in the atmosphere. About half of excess CO2 emissions to the atmosphere are absorbed by land and ocean carbon sinks. These sinks can become saturated and are volatile, as decay and wildfires result in the CO2 being released back into the atmosphere. CO2 is eventually sequestered (stored for the long term) in rocks and organic deposits like coal, petroleum and natural gas. Sequestered CO2 is released into the atmosphere through burning fossil fuels or naturally by volcanoes, hot springs, geysers, and when carbonate rocks dissolve in water or react with acids. CO2 is a versatile industrial material, used, for example, as an inert gas in welding and fire extinguishers, as a pressurizing gas in air guns and oil recovery, and as a supercritical fluid solvent in decaffeination of coffee and supercritical drying. It is a byproduct of fermentation of sugars in bread, beer and wine making, and is added to carbonated beverages like seltzer and beer for effervescence. It has a sharp and acidic odor and generates the taste of soda water in the mouth, but at normally encountered concentrations it is odorless.

ChatGPTRate this definition:0.0 / 0 votes

1. carbon dioxide

   Carbon dioxide is a colorless, odorless gas that is present in the earth's atmosphere. Its chemical formula is CO2, meaning it consists of one carbon atom and two oxygen atoms. It is produced by various processes, such as respiration and combustion of fossil fuels, and it is absorbed by plants for photosynthesis. Carbon dioxide is also a greenhouse gas, meaning it contributes to the warming of Earth's atmosphere.

WikidataRate this definition:0.0 / 0 votes

1. Carbon dioxide

   Carbon dioxide is a naturally occurring chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. It is a gas at standard temperature and pressure and exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. As part of the carbon cycle, plants, algae, and cyanobacteria use light energy to photosynthesize carbohydrate from carbon dioxide and water, with oxygen produced as a waste product. However, photosynthesis cannot occur in darkness and at night some carbon dioxide is produced by plants during respiration. Carbon dioxide is produced by combustion of coal or hydrocarbons, the fermentation of sugars in beer and winemaking and by respiration of all living organisms. It is exhaled in the breath of humans and land animals. It is emitted from volcanoes, hot springs, geysers and other places where the earth's crust is thin and is freed from carbonate rocks by dissolution. CO2 is also found in lakes at depth under the sea, and commingled with oil and gas deposits. The environmental effects of carbon dioxide are of significant interest. Carbon dioxide is an important greenhouse gas, warming the Earth's surface to a higher temperature by reducing outward radiation. Atmospheric carbon dioxide is the primary source of carbon in life on Earth and its concentration in Earth's pre-industrial atmosphere since late in the Precambrian eon has been regulated by photosynthetic organisms. Burning of carbon-based fuels since the industrial revolution has rapidly increased concentrations of atmospheric carbon dioxide, increasing the rate of global warming and causing anthropogenic climate change. It is also a major source of ocean acidification since it dissolves in water to form carbonic acid, which is a weak acid as its ionization in water is incomplete.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Carbon Dioxide

   A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.

How to pronounce carbon dioxide?

1. Alex

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How to say carbon dioxide in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of carbon dioxide in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of carbon dioxide in Pythagorean Numerology is: 6

Examples of carbon dioxide in a Sentence

1. Sol Ortiz:

   It's very difficult to reverse the tendency to increase CO2 (carbon dioxide) in the atmosphere, that's why we're prioritizing adaptation.

2. Varun Puri:

   The lungs in the body are performing a function, they are providing oxygen to the body and they are removing carbon dioxide, they are performing gas exchange, thus there is some degree of stress on the lungs, when they are in the box or on the circuit, there is really no function they are expected to perform.

3. Gavin Schmidt:

   This warming has been driven in large part by increased emissions into the atmosphere of carbon dioxide and other greenhouse gases caused by human activities.

4. Bob Ward:

   The methane created by livestock is a much more powerful greenhouse gas than carbon dioxide... so we will have to reduce meat consumption, but it's unlikely that we will reduce livestock to zero.

5. Pope Francis:

   It is true that there are other factors - such as volcanic activity, variations in the earth's orbit and axis, the solar cycle - yet a number of scientific studies indicate that most global warming in recent decades is due to the great concentration of greenhouse gases - carbon dioxide, methane, nitrogen oxides and others - released mainly as a result of human activity.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=carbon dioxide
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Carbon_Dioxide
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Carbon_Dioxide
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=carbon dioxide