Learn how to say Nitrogen correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word nitrogen:
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
late 18th century: from French nitrogène (see nitre, -gen)