noun
nox
ehn-oh-EHKS
Nox (noun) means any of several nitrogen oxide gases produced by burning fuel, a major source of air pollution. Example: “Diesel engines are notorious for high NOx emissions.”
noun
1
Any of several nitrogen oxide gases produced by burning fuel, a major source of air pollution.
"Diesel engines are notorious for high NOx emissions."
How to use nox
Learner’s notesIn plain EnglishA pollutant gas linked to vehicle exhaust and smog.
Common pairings
NOx emissions
NOx levels
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Word forms
- Plural
- noctes, noxes, noces
Fill the gap
Can you complete this real example?
Diesel engines are notorious for high _____ emissions.
Etymology
From Latin nox, "night" — the chemical sense (NOx) is unrelated and comes from combining "nitrogen" and "oxide."
Rhymes for nox
See all rhymes for nox →Frequently asked questions
What does “nox” mean?
The word “nox” means any of several nitrogen oxide gases produced by burning fuel, a major source of air pollution. In plain terms, a pollutant gas linked to vehicle exhaust and smog.
How do you pronounce “nox”?
“Nox” is pronounced ehn-oh-EHKS (/ɛn əʊ ˈɛks/ in IPA).
How do you use “nox” in a sentence?
Here is “nox” used in a sentence: “Diesel engines are notorious for high NOx emissions.”
What part of speech is “nox”?
“Nox” is a noun.
Where does the word “nox” come from?
The word “nox” comes from Latin. From Latin nox, "night" — the chemical sense (NOx) is unrelated and comes from combining "nitrogen" and "oxide.".
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