Definition of nitrogen in English:
nitrogen
noun ˈnʌɪtrədʒ(ə)nˈnaɪtrədʒən
mass nounThe 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.
Example sentencesExamples
- Fertilisers contain high concentrations of nitrogen to help promote the growth of crops.
- The data demonstrate that nitrogen and phosphorus are in especially short supply.
- This is a wasteful process causing a net loss of nitrogen to the animal and pollution of the environment.
- Real snow was to have been made on site by spraying air, water, and liquid nitrogen under pressure.
- Seeds were not inoculated with rhizobia and plants were dependent on inorganic nitrogen.
- Ammonium is the reduced nitrogen form available to plants for assimilation into amino acids.
- This may be due to the different functions of nitrogen and phosphorus in the plant.
- Obviously, vigorous shoots in high light attracted more nitrogen from other sources.
- Plant tissue was ground in liquid nitrogen and the protein extracted as described earlier.
- This is where the body's tissues have been loaded by nitrogen and micro bubbles have been formed.
- Their gas mix contains far less nitrogen than their air table or computer assumes they are breathing.
- The study mapped where common heather was contaminated by nitrogen in excess of safety limits.
- A continuous flow of liquid nitrogen is then circulated through the probe into the lung and out again.
- The absorption of nitrogen by plants plays an important role in their growth.
- Another approach is to apply less nitrogen and cut silage at the usual time of year.
- They rise during the day to find sunlight and sink to the depths at night, possibly to absorb nitrogen.
- These are then carried to the chamber in which the coating will be applied by an inert carrier gas such as nitrogen.
- They are formed as a consequence of a layer of nitrogen in the upper atmosphere that also attacks ozone.
- The white clover takes nitrogen from the air and puts it into the soil for the grass to feed on.
- The samples were frozen in liquid nitrogen to prevent migration of the fluorescent compounds.
Origin
Late 18th century: from French nitrogène (see nitre, -gen).