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nitric oxide

nitric oxide

1 4.7
A colorless gas that can be poisonous and sends signals in the body
  • noun
  • /ˈnaɪtrɪk ˈaɪkaɪd/
  • Specialized
translation icon : óxido nítrico
  • The recommendations state that measurement of exhaled nitric oxide, used alongside other diagnostic options, may also help clinicians and patients find the most appropriate medication earlier and manage their symptoms better.
  • exhaled nitric oxide
  • nitric oxide testing
  • production of nitric oxide

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Examples

  • Nitric oxide testing is also recommended as an option to support the management of asthma in children.

    Academic text (2014)
  • Nitric oxide (NO) in exhaled breath is produced primarily by the upper respiratory airway mucosa.

    Academic text (2003)
  • As we age, we tend to produce less nitric oxide.

    Blog text (17)
  • Would exhaled nitric oxide testing have offered any additional helpful information?

    Academic text (2011)
  • The nerve signals trigger the production of nitric oxide (NO).

    Academic text (2003)
  • Some nitrite in our stomach reacts with gastric contents, forming nitric oxide, which may have many beneficial effects.

    Blog text (25)
  • While it is not yet widely implemented, a fraction of exhaled nitric oxide (FeNO) has emerged in recent years as a useful tool in both the diagnosis and management of asthma.

    Academic text (2014)
  • Up until the 1980s, nitric oxide was thought only to play a role in the detrimental effects of air pollution on the respiratory system, but in 1991, nitric oxide was detected in exhaled breath samples.

    Academic text (2014)
  • Maintaining adequate levels of nitric oxide in the bloodstream is crucial for healthy blood circulation.

  • The body produces nitric oxide as a signaling molecule to help regulate various physiological functions.

Surface Forms

nitric oxide singular
nitric oxides plural

Morphology

nitric + oxide

The phrase is a straightforward chemical compound name: 'nitric' relates to nitrogen and 'oxide' means a compound with oxygen, so together they denote an oxide of nitrogen (a nitrogen–oxygen compound). This compositional, cross-linguistically regular naming pattern (e.g. Spanish 'óxido nítrico') makes the basic meaning predictable to a B1 learner who knows both constituents, even if detailed properties (color, toxicity) require specialist knowledge.

Etymology

Nitric oxide comes from old chemistry words: nitric comes from 'nitre' (an old name for saltpeter) and oxide means 'with oxygen'. So the name literally describes a small gas made of nitrogen and oxygen, which matches how nitric oxide is used in industry and made in the body today.