nitrogen -
a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
chemical element,
element the most favorable environment for a plant or animal; "water is the element of fishes"
gas the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container
air a distinctive but intangible quality surrounding a person or thing; "an air of mystery"; "the house had a neglected air"; "an atmosphere of defeat pervaded the candidate's headquarters"; "the place had an aura of romance"
nitrogen -
Molecular nitrogen N2, a colorless, odorless gas at room temperature.
nitrogen -
A specific nitrogen within a chemical formula, or a specific isotope of nitrogen.
Wikipedia
Nitrogen is a chemical element that has the symbol N, atomic number of 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78.08% by volume of Earth's atmosphere. The element nitrogen was discovered as a separable component of air, by Scottish physician Daniel Rutherford, in 1772.
OmegaWiki Dictionary
Ω
nitrogen Gaseous, non-metallic chemical element with symbol N and atomic number 7.
