Carbon dioxide makes up about 0.03 percent of the air. Its chemical formula is CO2 , which means it is one carbon atom bonded to two oxygen atoms. The Most Insincere Compliments And What To Say Instead. Natural sources of atmospheric CO2 include outgassing from volcanoes, the combustion and natural decay of organic matter, and respiration by aerobic (oxygen-using) organisms. “Carbon dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carbon%20dioxide. Published by Houghton Mifflin Company. The Dictionary.com Word Of The Year For 2020 Is …. n. 1. For example, the global warming potential for methane over 100 years is 21. What Is The Difference Between “It’s” And “Its”? A carbon dioxide (CO 2) fire extinguisher is a portable, active fire protection device that works by expelling carbon dioxide onto a fire.It works by displacing the oxygen the fire relies upon to continue burning, and it is primarily used to extinguish fires in which the source of the fuel is … Carbon dioxide (CO2) is an odorless, colorless gas. Information and translations of ***carbon dioxide in the most comprehensive dictionary definitions resource on the web. a colorless, odorless, incombustible gas, CO, 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. carbon dioxide. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. Carbon dioxide is a molecule that contains two oxygen atoms and one carbon atom. English Language Learners Definition of dioxide chemistry : a molecule that has two atoms of oxygen and one atom of another element (such as carbon) See the full definition for dioxide in the English … See the full definition for carbon dioxide in the English Language Learners Dictionary, More from Merriam-Webster on carbon dioxide, Britannica.com: Encyclopedia article about carbon dioxide. Your blood carries carbon dioxide to your lungs. Describe 2020 In Just One Word? Michael Alberty | For The Oregonian/oregonlive, We Got You This Article on 'Gift' vs. 'Present'. Meaning of ***carbon dioxide. Carbon dioxide has no liquid state at pressures below 5.1 standard atmospheres (520 kPa). Under all conditions found naturally on Earth, CO2 is an invisible, odorless gas. Abbreviated CO2. Although carbon dioxide is a naturally occurring gas, it is also released into the atmosphere as a result of: carbon dioxide definition: 1. the gas formed when carbon is burned, or when people or animals breathe out: 2. the gas formed…. Accessed 12 Dec. 2020. Carbon dioxide: A gas which is the byproduct of cellular metabolism and which collects in the tissues, is cleared from the tissues by the blood within the veins, is carried by the hemoglobin in the red blood cells, and removed from the body via the lungs in the exhaled air. Plants and other photoautotrophs use solar energy to produce carbohydrate from atmospheric carbon dioxide and water by photosynthesis. Definition: Carbon dioxide equivalent is a measure used to compare the emissions from various greenhouse gases based upon their global warming potential. Carbon dioxide formed during respiration is excreted by the lungs. The current concentration is about 0.04% (412 ppm) by volume, having risen from pre-industrial levels of 280 ppm. All rights reserved. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. Definition of carbon dioxide : a heavy colorless gas CO2 that does not support combustion, dissolves in water to form carbonic acid, is formed especially 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 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. 2) is an important trace gas in Earth's atmosphere. Carbon dioxide is a colorless, odorless gas found in our atmosphere. What Is An Em Dash And How Do You Use It? Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolutionin water and acids. Definition of ***carbon dioxide in the Definitions.net dictionary. Global warming - Global warming - Carbon dioxide: Of the greenhouse gases, carbon dioxide (CO2) is the most significant. You breathe out carbon dioxide and breathe in oxygen all day, every day, without thinking about it. Delivered to your inbox! These example sentences are selected automatically from various online news sources to reflect current usage of the word 'carbon dioxide.' Published by Houghton Mifflin Harcourt Publishing Company. It is naturally present in air (about 0.03 per cent) and is absorbed by plants in photosynthesis. Also, every time something organic is burnt (or a fire is made), it makes carbon dioxide. Why Do “Left” And “Right” Mean Liberal And Conservative? Depressions in the carbon-dioxide snow where the hundred-foot pad-feet of ships' landing-legs had pressed down. Carbon dioxide (chemical formula CO2) is a colorless gas with a density about 53% higher than that of dry air. It can be found as a gas in the air, or as a solid in the form of dry ice, which is very cold. Each molecule of carbon dioxide consists of one atom of carbon and two atoms of oxygen. They contained a carbon-dioxide cartridge and could be inflated simply by squeezing them, which punctured the cartridge. Carbon dioxide makes up less than 1% of the atmosphere; however, it is an important greenhouse gas. “Affect” vs. “Effect”: Use The Correct Word Every Time. Got you this Article on 'Gift ' vs. 'Present ' is freed from carbonate rocks by dissolutionin water and.! On the web called photosynthesis you want to look up carbon dioxide cycle translation, English Dictionary of! Primitive atmosphere Dictionary, Merriam-Webster, https: //www.merriam-webster.com/dictionary/carbon % 20dioxide methane over 100 years is 21 the... 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