Nihoner
表層形
NOX
エヌオーエックス
名詞

NOX (エヌオーエックス)

Enuooekkusu · えぬおーえっくす — nitrogen oxide, NOx

Other ways to say “nitrogen oxide” in Japanese →

NOX in rōmaji: enuooekkusu, also spelled enuoekkusu.

名詞 普通名詞 一般 *
🔤 * 📐 *
Updated: 2026年9月12日
📖 Grammar Information
表層形 (Surface)
NOX
読み (Reading)
エヌオーエックス
品詞 (POS)
名詞・普通名詞・一般・*
活用型 (Conj. Type)
*
活用形 (Conj. Form)
*
表記 (Orthography)
NOX
読み・基本形
エヌオーエックス
表記・基本形
NOX
見出し語の読み
エヌオーエックス
How it's used

Used in environmental, technical, or news contexts when discussing air pollution, emission limits, or combustion byproducts.

NOXの排出量を削減する必要があります。
Enuooekkusu no haishutsuryō o sakugen suru hitsuyō ga arimasu.
We need to reduce NOx emissions.

車の排気ガスにはNOXが含まれています。
Kuruma no haikigasu ni wa enuooekkusu ga fukumarete imasu.
Car exhaust contains nitrogen oxides.

⚖️ Often confused with 'CO2' (carbon dioxide), but NOx refers specifically to nitrogen oxides, mostly from combustion.

💡 English Meaning

NOX means “nitrogen oxide, NOx” — full definition & examples →

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NOX
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Reading & Info
エヌオーエックス
名詞普通名詞一般*
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Did you know · 名詞
名詞 (nouns) are the backbone of Japanese sentences. They can be combined with particles like が, を, に, で to indicate grammatical role.
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❓ About this entry
What is the difference between surface form and lemma? ▼
The surface form (NOX) is the exact text as it appeared in the corpus — it may be conjugated or inflected. The lemma (NOX) is the dictionary base form. For example, 食べた (surface) has the lemma 食べる.
What does the reading (pron) field mean? ▼
The reading shows the pronunciation in hiragana or katakana as recorded by UniDic. For kanji entries this is the standard reading of this specific surface form — which may differ from other readings of the same kanji.
What is UniDic? ▼
UniDic is a comprehensive Japanese lexicon developed by the National Institute for Japanese Language and Linguistics (NINJAL). It provides detailed morphological information for modern Japanese words, used in NLP tools like MeCab.
How do I save this entry? ▼
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