carbon dioxide (redirected from Carbonic anhydride)

carbon /car·bon/ (C) (kahr´bon) a chemical element, at. no. 6.

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carbon dioxide  an odorless, colorless gas, CO2, resulting from oxidation of carbon, and formed in the tissues and eliminated by the lungs; used in some pump oxygenators to maintain blood carbon dioxide tension. In solid form it is carbon dioxide snow (see under snow ).

carbon monoxide  an odorless gas, CO, formed by burning carbon or organic fuels with a scanty supply of oxygen; inhalation causes central nervous system damage and asphyxiation by combining irreversibly with blood hemoglobin.

carbon tetrachloride  a clear, colorless, volatile liquid; inhalation of its vapors can depress central nervous system activity and cause degeneration of the liver and kidneys.

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carbon dioxide

n.

A colorless, odorless, incombustible gas formed during respiration, combustion, and organic decomposition and used in inert atmospheres, fire extinguishers, and aerosols.

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Carbon dioxide

A heavy, colorless gas that dissolves in water.

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carbon dioxide (CO₂)

Etymology: L, carbo + Gk, dis, twice, oxys, sharp

a colorless, odorless gas produced by the oxidation of carbon; also a "greenhouse" gas. Carbon dioxide, as a product of cell respiration, is carried by the blood to the lungs and is exhaled. The acid-base balance of body fluids and tissues is affected by the level of carbon dioxide and its carbonate compounds. Solid carbon dioxide (dry ice) is used in the treatment of some skin conditions. Normal adult blood levels of carbon dioxide are 23 to 30 mEq/L or 23 to 30 mmol/L (SI units).

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carbon,

n a nonmetallic tetravalent element that occurs in pure form in diamonds and graphite. It occurs as a component of all living tissue. Most of the study of organic chemistry focuses on the vast number of carbon compounds.

carbon coated,

adj a vitreous carbon coating applied to either an endosteal or blade implant to improve tissue compatability.

carbon dioxide,

n a colorless, odorless gas produced by the complete oxidation of carbon. It is a product of cell respiration and is carried by the blood to the lungs and exhaled. The acid-base balance of body fluids and tissues is affected by the level of it and its carbonate compounds.

carbon monoxide,

n a colorless, odorless, poisonous gas produced by the combustion of carbon or organic fuels in a limited oxygen supply. It combines irreversibly with hemoglobin, preventing the formation of oxyhemoglobin and reducing the oxygen supply to the tissues.

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carbon dioxide

an odorless, colorless gas, CO₂, resulting from oxidation of carbons, formed in the tissues and eliminated by the lungs; used with oxygen to stimulate respiration and in solid form (carbon dioxide snow—see below) as an escharotic, as a gas to euthanize laboratory rabbits and rodents.

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carbon dioxide anesthesia

exposure of pigs for 45 seconds in a mixture of 60 to 70% CO₂ in air is an adequate pre-slaughter anesthetic for pigs.

carbon dioxide combining power

the ability of blood plasma to combine with carbon dioxide; indicative of the alkali reserve and a measure of the acid-base balance of the blood.

carbon dioxide content

the amount of carbonic acid and bicarbonate in the blood; reported in millimoles per liter.

carbon dioxide dissociation curve

a graph demonstrating the relationship between the blood content of CO₂ and the Pco₂.

carbon dioxide narcosis

respiratory acidosis.

carbon dioxide snow

solid carbon dioxide, formed by rapid evaporation of liquid carbon dioxide; it gives a temperature of about −110°F (−79°C), and is used as an escharotic in various skin diseases. Called also dry ice.

carbon dioxide tension

the partial pressure of carbon dioxide in the blood; noted as Pco₂ in blood gas analysis. See also respiration.

carbon dioxide transport

carbon dioxide passes from tissues to blood by diffusion, in the blood by solution and via reactions within plasma and erythrocytes, from blood to pulmonary alveoli by diffusion.

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hypercapnia

The presence of a raised carbon dioxide content or tension in a milieu (e.g. blood, tears). Contact lens wear tends to give rise to this condition, especially lenses of low gas transmissibility. See acidosis.

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carbon dioxide

CO₂ Physiology A metabolic byproduct of carbohydrate metabolism; it accumulates in tissues, is released to the blood in veins, and is eliminated via the lungs