nitrogen

Definitions


[ˈnʌɪtrədʒ(ə)n], (Noun)

Definitions:
- 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


Phrases:

Origin:
late 18th century: from French nitrogène(see nitre, -gen)




definition by Oxford Dictionaries