nitrogen
გამოთქმა:
/ˈnʌɪtrədʒ(ə)n/
არსებითი სახელი
Universal
- the chemical element of atomic number 7, a colourless, odourless unreactive gas that forms about 78 per cent of the earth’s atmosphere. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant: bacteria in the root nodules of legumes have the capacity to fix nitrogen from the air (Symbol: N)