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respiration
[ res-puh-rey-shuhn ]
noun
- the act of respiring; inhalation and exhalation of air; breathing.
- Biology.
- the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells, and the oxidation products, carbon dioxide and water, are given off.
- an analogous chemical process, as in muscle cells or in anaerobic bacteria, occurring in the absence of oxygen.
respiration
/ ˌrɛspəˈreɪʃən /
noun
- the process in living organisms of taking in oxygen from the surroundings and giving out carbon dioxide ( external respiration ). In terrestrial animals this is effected by breathing air
- the chemical breakdown of complex organic substances, such as carbohydrates and fats, that takes place in the cells and tissues of animals and plants, during which energy is released and carbon dioxide produced ( internal respiration )
respiration
/ rĕs′pə-rā′shən /
- The process by which organisms exchange gases, especially oxygen and carbon dioxide, with the environment. In air-breathing vertebrates, respiration takes place in the lungs. In fish and many invertebrates, respiration takes place through the gills. Respiration in green plants occurs during photosynthesis.
respiration
- The conversion of oxygen by living things into the energy by which they continue life. Respiration is part of metabolism .
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Notes
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Other Words From
- respi·ration·al adjective
- preres·pi·ration noun
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Word History and Origins
Origin of respiration1
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Example Sentences
And some reptiles add a fourth function to the overworked cloacal repository–that of respiration as well.
From higher up, at the level of the hidden bed, came the regular plaintive respiration of Sarah Gailey.
It is produced abundantly when vegetable matters are burnt, as also during respiration, fermentation, and many other processes.
On examining the respiration and pulse, I have never been able to detect any characteristic abnormality.
His eyes are closed, and from the parted lips there issues the regular respiration of sound sleep.
After twelve minutes of artificial respiration the lungs and heart began to act.
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