nitrogen
🇬🇧 UK/'naɪtrədʒ(ə)n/🇺🇸 US/'naitrәdʒәn/
IELTSTOEFLA2
Definitions
n.
A colorless, odorless chemical element (symbol N, atomic number 7) making up about 78% of the atmosphere
氮(化学元素,符号N,约占大气的78%)
🧩 Root Breakdown
Root-derivedCommon Collocations
- 1.nitrogen fixation固氮作用
- 2.nitrogen cycle氮循环
- 3.nitrogen levels氮含量
Example Sentences
- 1.
Nitrogen is essential for plant growth and agricultural productivity.
- 2.
The atmosphere contains about 78 percent nitrogen gas.
- 3.
Farmers apply nitrogen fertilizers to improve soil nutrient content.