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nitrogen
[nahy-truh-juhn]
noun
a colorless, odorless, gaseous element that constitutes about four-fifths of the volume of the atmosphere and is present in combined form in animal and vegetable tissues, especially in proteins: used chiefly in the manufacture of ammonia, nitric acid, cyanide, explosives, fertilizer, dyes, as a cooling agent, etc. N; 14.0067; 7; density: 1.2506 grams/liter at 0°C and 760 millimeters pressure.
nitrogen
/ ˈԲɪٰəə /
noun
a colourless odourless relatively unreactive gaseous element that forms 78 per cent (by volume) of the air, occurs in many compounds, and is an essential constituent of proteins and nucleic acids: used in the manufacture of ammonia and other chemicals and as a refrigerant. Symbol: N; atomic no: 7; atomic wt: 14.00674; valency: 3 or 5; density: 1/ 2506 kg/m³; melting pt: –210.00°C; boiling pt: –195.8°C
( as modifier )
nitrogen cycle
nitrogen
A nonmetallic element that makes up about 78 percent of the atmosphere by volume, occurring as a colorless, odorless gas. It is a component of all proteins, making it essential for life, and it is also found in various minerals. Nitrogen is used to make ammonia, nitric acid, TNT, and fertilizers. Atomic number 7; atomic weight 14.0067; melting point −209.86°C; boiling point −195.8°C; valence 3, 5.
See Periodic Table See Note at oxygen
nitrogen
A chemical element that makes up about four-fifths of the atmosphere of the Earth. Its symbol is N.
51Թ History and Origins
Example Sentences
On Earth, the unique combination of oxygen, nitrogen and other gases, combined with the effects of gravity and solar heating, create a certain density of molecules that carries sound as we know it.
The California coastline can experience large-scale blooms of algae called Pseudo-nitzschia australis when warm water combines with excess nutrients such as nitrogen and phosphorus.
"The two destroyed incubators - which cost over $10,000 - were filled with liquid nitrogen that preserved the samples," he says.
However, a recent report from Stonehaven Global warned that abolishing the discount for electric vehicles could "threaten to undo years of air quality gains and risk an 11% rise in nitrogen oxides across central London".
“There’s literally billions of organisms in there feeding on nitrogen and generating heat with their bodies, breaking down carbon,” Stusser said.
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