Definition of nitrogen dioxide in English:

nitrogen dioxide

nounˌnʌɪtrədʒ(ə)n dʌɪˈɒksʌɪdˈnaɪtrədʒən daɪˈɑkˌsaɪd

mass nounChemistry

A reddish-brown poisonous gas occurring commonly as an air pollutant, formed by the oxidation of nitric oxide or by combustion in the presence of air. Below 21°C nitrogen dioxide is a yellowish-brown liquid.
Chemical formula: NO₂. It exists in equilibrium with dinitrogen tetroxide, N₂O₄
Example sentencesExamples
- Free radicals such as nitric oxide and nitrogen dioxide show weak attractions toward magnetic fields - they are called paramagnetic.
- In these reactions the ozone reacts with nitric oxide to produce nitrogen dioxide.
- Levels of nitric oxide, nitrogen dioxide and sulphur dioxide remained at a normally low level.
- Increases in ozone, sulphur dioxide, nitrogen dioxide and carbon monoxide are blamed primarily on the motorist.
- Nitric oxide and nitrogen dioxide were chemically assayed as nitrite from sorbent tubes by using spectrophotometry.

Definition of nitrogen dioxide in US English:

nitrogen dioxide

nounˈnītrəjən dīˈäkˌsīdˈnaɪtrədʒən daɪˈɑkˌsaɪd

Chemistry

A reddish-brown poisonous gas occurring commonly as an air pollutant, formed by the oxidation of nitric oxide or by combustion in the presence of air. Below 70°F (21°C), nitrogen dioxide is a yellowish-brown liquid.
Chemical formula: NO₂. It exists in equilibrium with dinitrogen tetroxide, N₂O₄
Example sentencesExamples
- Free radicals such as nitric oxide and nitrogen dioxide show weak attractions toward magnetic fields - they are called paramagnetic.
- Nitric oxide and nitrogen dioxide were chemically assayed as nitrite from sorbent tubes by using spectrophotometry.
- Increases in ozone, sulphur dioxide, nitrogen dioxide and carbon monoxide are blamed primarily on the motorist.
- Levels of nitric oxide, nitrogen dioxide and sulphur dioxide remained at a normally low level.
- In these reactions the ozone reacts with nitric oxide to produce nitrogen dioxide.

单词	nitrogen dioxide
释义	Definition of nitrogen dioxide in English: nitrogen dioxide nounˌnʌɪtrədʒ(ə)n dʌɪˈɒksʌɪdˈnaɪtrədʒən daɪˈɑkˌsaɪd mass nounChemistry A reddish-brown poisonous gas occurring commonly as an air pollutant, formed by the oxidation of nitric oxide or by combustion in the presence of air. Below 21°C nitrogen dioxide is a yellowish-brown liquid. Chemical formula: NO₂. It exists in equilibrium with dinitrogen tetroxide, N₂O₄ Example sentencesExamples Free radicals such as nitric oxide and nitrogen dioxide show weak attractions toward magnetic fields - they are called paramagnetic. In these reactions the ozone reacts with nitric oxide to produce nitrogen dioxide. Levels of nitric oxide, nitrogen dioxide and sulphur dioxide remained at a normally low level. Increases in ozone, sulphur dioxide, nitrogen dioxide and carbon monoxide are blamed primarily on the motorist. Nitric oxide and nitrogen dioxide were chemically assayed as nitrite from sorbent tubes by using spectrophotometry. Definition of nitrogen dioxide in US English: nitrogen dioxide nounˈnītrəjən dīˈäkˌsīdˈnaɪtrədʒən daɪˈɑkˌsaɪd Chemistry A reddish-brown poisonous gas occurring commonly as an air pollutant, formed by the oxidation of nitric oxide or by combustion in the presence of air. Below 70°F (21°C), nitrogen dioxide is a yellowish-brown liquid. Chemical formula: NO₂. It exists in equilibrium with dinitrogen tetroxide, N₂O₄ Example sentencesExamples Free radicals such as nitric oxide and nitrogen dioxide show weak attractions toward magnetic fields - they are called paramagnetic. Nitric oxide and nitrogen dioxide were chemically assayed as nitrite from sorbent tubes by using spectrophotometry. Increases in ozone, sulphur dioxide, nitrogen dioxide and carbon monoxide are blamed primarily on the motorist. Levels of nitric oxide, nitrogen dioxide and sulphur dioxide remained at a normally low level. In these reactions the ozone reacts with nitric oxide to produce nitrogen dioxide.
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