Nitrogen
['naɪtrədʒ(ə)n] or ['naɪtrədʒən]
Definition
(noun.) 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.
Typed by Ellie--From WordNet
Definition
(n.) A colorless nonmetallic element, tasteless and odorless, comprising four fifths of the atmosphere by volume. 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, as ammonia, nitric acid, the cyanides, etc, and is a constituent of all organized living tissues, animal or vegetable. Symbol N. Atomic weight 14. It was formerly regarded as a permanent noncondensible gas, but was liquefied in 1877 by Cailletet of Paris, and Pictet of Geneva.
Checker: Olivier
Synonyms and Synonymous
n. Azote.
Inputed by Hodge
Definition
n. a gas forming nearly four-fifths of common air a necessary constituent of every organised body so called from its being an essential constituent of nitre.—adjs. Nitrogen′ic Nitrog′enous.—v.t. Nitrog′enise to impregnate with nitrogen.—n. Nitrom′eter an apparatus for estimating nitrogen in some of its combinations.
Editor: Rochelle
Examples
- The pure nitrogen then can be pumped into the fixation ovens. Various. The Wonder Book of Knowledge.
- Inasmuch as the nitrogen of liquid air evaporates first, and leaves nearly pure liquid oxygen, it may also be employed as a means for producing and applying oxygen. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Commercial fertilizers generally contain nitrogen, phosphorus, and potash in amounts varying with the requirements of the soil. Bertha M. Clark. General Science.
- The gas first evaporating is nitrogen, and a lighted match applied to the surface of the liquid is quickly extinguished, since nitrogen does not support combustion. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- The most important of plant foods is nitrogen. Various. The Wonder Book of Knowledge.
- Nitrogen is colorless, odorless, and tasteless. Bertha M. Clark. General Science.
- The fact that the oxygen of the air is diluted as it were with so large a proportion of nitrogen, prevents fires from sweeping over the world and destroying everything in their path. Bertha M. Clark. General Science.
- While the earth is literally bathed in nitrogen, this element is found to only a very slight degree in the soil. Various. The Wonder Book of Knowledge.
- The free nitrogen of the air cannot be utilized directly by plants. Various. The Wonder Book of Knowledge.
- When the temperature is about as hot as that of molten iron the pure nitrogen gas from the liquid air plant is pumped in and allowed to act on the calcium carbide for about a day and a half. Various. The Wonder Book of Knowledge.
- The presence of these nitrogen compounds influences the action of the chlorine and produces unsatisfactory results. Bertha M. Clark. General Science.
- He drew diagrams combining an a tom of oxygen with an atom of nitrogen and an atom of aqueous vapor. Walter Libby. An Introduction to the History of Science.
- He also by use of the electric spark caused the oxygen and nitrogen of the air to unite to form nitric acid. Walter Libby. An Introduction to the History of Science.
- When nitrogen gas is in contact with heated calcium carbide, a reaction takes place which results in the formation of calcium nitride, a compound suitable for enriching the soil. Bertha M. Clark. General Science.
- Air has usually been held to consist of four volumes of nitrogen and one volume of oxygen, with a very small proportion of carbonic acid gas and ammonia. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
Checked by Felicia