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n. A nonmetallic element that constitutes nearly four-fifths of the air by volume, occurring as a colorless, odorless, almost inert diatomic gas, N2, in various minerals and in all proteins and used in a wide variety of important manufactures, including 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 Table at element.

n. A chemical element (symbol N) with an atomic number of 7 and atomic weight of 14.0067.

n. Molecular nitrogen (N2), a colorless, odorless gas at room temperature.

n. A specific nitrogen within a chemical formula, or a specific isotope of nitrogen

n. A colorless nonmetallic element of atomic number 7, tasteless and odorless, comprising four fifths of the atmosphere by volume in the form of molecular nitrogen (N2). It is chemically very inert in the free state, and as such is incapable of supporting life (hence the name azote still used by French chemists); but it forms many important compounds, such as ammonia, nitric acid, the cyanides, etc, and is a constituent of all organized living tissues, animal or vegetable. Symbol N. Atomic weight 14.007. It was formerly regarded as a permanent noncondensible gas, but was liquefied in 1877 by Cailletet of Paris, and Pictet of Geneva, and boils at -195.8 ° C at atmospheric pressure. Liquid nitrogen is used as a refrigerant to store delicate materials, such as bacteria, cells, and other biological materials.

n. Chemical symbol, N; atomic weight, 14. An element existing in nature as a colorless, odorless, tasteless gas, reducible to a liquid under extreme pressure and cold.

n. The boiling-point of liquid nitrogen under ordinary atmospheric pressure is -194.4° C. or -317.9° F. For the fixation of atmospheric nitrogen by growing plants, see nitragin.

n. 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

"From a Chemical & Engineering News account at the time: "While some depictions are chemically accurate -- such as nitrogen, which shows a rooted elephant drawing nitrogen from the soil -- others are more a play on the names -- for example, the masked Lone Ranger atop a rearing white elephant representing silver.""

gas    chemical element    element   

nitrogen sulphid    nitrogen-free extract    organic nitrogen    nitrogen chlorid    saltpeter    laughing gas    aqua regia    aqua fortis    saltpetre   

azote   

azote    liquid nitrogen   

E941    propellant    packaging gas   

oxygen    dioxide    chlorine    nutrient    phosphorus    ammonia    calcium    fertilizer    iodine    nitrate