One of the mysteries of the English language finally explained.
A colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.‘if breathing stops, there is no oxygen getting to the brain and the cells begin to die’‘hydrogen and carbon in the fuel combine with the oxygen in the air to form carbon dioxide and water’as modifier ‘an oxygen supply’
- ‘In other words, it is possible to die from a lack of oxygen, because of ozone poisoning.’
- ‘The air in this chamber is very low in oxygen, so divers are advised not to remove their regulators.’
- ‘He also had difficulty breathing and had to be given oxygen on arrival at hospital.’
- ‘Therefore in light plants gave out oxygen, but in the dark they emitted carbon dioxide.’
- ‘It results from a temporary reduction in blood and oxygen supply to part of the brain.’
- ‘Despite the addition of oxygen and the issue of potash cartridges, the air is foul.’
- ‘Energy is generated by the reaction of hydrogen and oxygen across a catalytic membrane.’
- ‘This oxygen may also support nitrifying bacteria that convert ammonia to nitrate.’
- ‘The heart muscle is supplied with oxygen by blood arriving in the coronary arteries.’
- ‘On the one hand, there is the body's need for oxygen and its supply from the lungs.’
- ‘Solar panels power an electrolyser that separates water into hydrogen and oxygen.’
- ‘There seems to be less oxygen in town air on a very hot day, even in a quiet corner like Bath Place.’
- ‘This maintained the same concentration of oxygen in the gas flow at the point of analysis.’
- ‘In addition, the very reactive singlet oxygen can be generated by an input of energy.’
- ‘Copper reacts with oxygen and carbon dioxide to form a greenish patina of copper carbonate.’
- ‘There may also be a greatly reduced oxygen content in the air at the bottom of deep wells.’
- ‘To avoid the production of oxygen via photosynthesis, plants were kept in the dark.’
- ‘The chemicals in tobacco reduce the flow of oxygen around the mother's blood stream.’
- ‘Iron is needed to produce more blood to supply the baby with the necessary nutrients and oxygen.’
- ‘It is important to minimize the new wine's exposure to oxygen, whatever its colour.’
Late 18th century: from French ( principe) oxygène ‘acidifying constituent’ (because at first it was held to be the essential component in the formation of acids).
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