Definition of nitrogen in English:
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)
More example sentences
- Plant tissue was ground in liquid nitrogen and the protein extracted as described earlier.
- The data demonstrate that nitrogen and phosphorus are in especially short supply.
- This may be due to the different functions of nitrogen and phosphorus in the plant.
Definition of nitrogen in:
- US English dictionary
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