| / English Dictionary |
CARBON DIOXIDE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis
Synonyms:
carbon dioxide; carbonic acid gas; CO2
Classified under:
Hypernyms ("carbon dioxide" is a kind of...):
dioxide (an oxide containing two atoms of oxygen in the molecule)
greenhouse emission; greenhouse gas (a gas that contributes to the greenhouse effect by absorbing infrared radiation)
Hyponyms (each of the following is a kind of "carbon dioxide"):
blackdamp; chokedamp (the atmosphere in a mine following an explosion; high in carbon dioxide and incapable of supporting life)
Derivation:
carbonate (treat with carbon dioxide)
Context examples:
The BBB lets some substances, such as water, oxygen, carbon dioxide, and general anesthetics, pass into the brain.
(BBB, NCI Dictionary)
D-glucopyranose is oxidized in various tissues either under aerobic or anaerobic conditions through glycolysis, and the oxidation reaction produces carbon dioxide, water and ATP.
(Beta-D-Glucopyranose, NCI Thesaurus)
An inhalant consisting of hyperoxic gas (95%-98% oxygen and 2%-5% carbon dioxide) with radiosensitizing properties.
(Carbogen, NCI Thesaurus)
Carbon dioxide in the blood passes into the lungs through the alveoli.
(Alveoli, NCI Dictionary)
Carbon dioxide travels in the blood from the body’s tissues to the lungs.
(Carbon dioxide, NCI Dictionary)
Rice grown while exposed to carbon dioxide levels expected by the end of this century had lower levels of vitamins, minerals and protein than normal, the results showed.
(Planet-Warming Gases Make Some Food Less Nutritious, Study Says, Steve Baragona/VOA)
Green algae also absorb carbon dioxide and produce oxygen.
(Scientists report skyrocketing phyotplankton population in aftermath of Kīlauea eruption, Wikinews)
A measurement of the pressure of carbon dioxide in a biological specimen.
(Partial Pressure of Carbon Dioxide Measurement, NCI Thesaurus/CDISC)
The process through which light energy, water, and carbon dioxide are converted to carbohydrate and oxygen in the presence of chlorophyll.
(Photosynthesis, NCI Thesaurus)
During photosynthesis, water and carbon dioxide combine to form carbohydrates (sugars) and give off oxygen.
(Photosynthesis, NCI Dictionary)
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