1.
nitrogen
A chemical element (N) that makes up about 78% of Earth's atmosphere. An odorless, colorless gas essential for plant growth and used in various industrial processes.
空気の約78%は窒素だ。
About 78% of the air is nitrogen.
液体窒素は非常に低い温度で使われる。
Liquid nitrogen is used at extremely low temperatures.
植物の成長には窒素を含む肥料が必要だ。
Plants need fertilizer containing nitrogen in order to grow.
USAGE:
窒素 is used in science, agriculture, and everyday contexts. The kanji 窒 means "suffocate" and 素 means "element," reflecting the fact that nitrogen alone does not support breathing.
COMMON COLLOCATIONS:
- 液体窒素 (liquid nitrogen)
- 窒素肥料 (nitrogen fertilizer)
- 窒素酸化物 (nitrogen oxides)
- 窒素固定 (nitrogen fixation)
CHEMICAL ELEMENT NAMES:
Japanese element names often use descriptive kanji:
- 酸素 (oxygen — "acid element")
- 水素 (hydrogen — "water element")
- 炭素 (carbon — "charcoal element")
- 窒素 (nitrogen — "suffocating element")