nitrogen

名词 nitrogen:

1. a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
   同义词：N, atomic number 7

1. Air consists chiefly of nitrogen.
   空气主要由氮气组成。
2. If it were not for oxygen and nitrogen in the air, no man could live on the earth.
   大气中如果没有氧和氮，人就无法生存于地球了。
3. The lamp is full of gaseous nitrogen.
   灯里充满了气体氮。
4. Nitrogen forms most of the Earth's air.
   地球上空气的大部分成分是氮气。

ni.tro.gen

n.Symbol N （名词）符号 N
A nonmetallic element that constitutes nearly four fifths of the air by volume, occurring as a colorless, odorless, almost inert diatomic gas, N2, in various minerals and in all proteins and used in a wide variety of important manufactures, including ammonia, nitric acid, TNT, and fertilizers. Atomic number 7; atomic weight 4.00'7; melting point -209.8'=C; boiling point -95.8=C; valence 3, 5. See table at element
氮：一种非金属元素，按体积计算约占空气的五分之四，是一种无色、无味几乎为惰性的双原子气体，N2，存在于各种矿物和所有的蛋白质中，广泛地运用于各种重要的生产中包括生产氨酸、硝酸、黄色炸药以及化肥。原子序数7；原子量4.00'7；熔点-209.8'°C；沸点-95.8°C；化合价3,5 参见 element

来源：
French nitrogène
法语 nitrogène
nitro- [nitric acid] from New Latin * see nitro-
nitro- [硝酸] 源自 现代拉丁语 *参见 nitro-
-gène [-gen]
-gène [生，被生]

【引伸】
nitrog.enous