nitrogen

[ nahy-truh-juhn ]

/ ˈnaɪ trə dʒən /

noun Chemistry.

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. Symbol: N; atomic weight: 14.0067; atomic number: 7; density: 1.2506 grams/liter at 0°C and 760 millimeters pressure.

Origin of nitrogen

First recorded in 1785–95; from French nitrogène; see origin at nitro-, -gen

Words nearby nitrogen

nitrocotton, nitro dye, nitrofuran, nitrofurantoin, nitrogelatin, nitrogen, nitrogenase, nitrogen balance, nitrogen base, nitrogen cycle, nitrogen dioxide

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for nitrogen

Grosvenor Place, which runs alongside the palace, has almost four times the maximum permissible amount of nitrogen dioxide.
Pollution At The Palace|Tom Sykes|February 24, 2014|DAILY BEAST
In any case some allowance should be made for the amount of nitrogen collected by the legumes.
The Pecan and its Culture|H. Harold Hume
If oxygen is combined with nitrogen, it produces five deadly poisons, viz.
A Guide to the Scientific Knowledge of Things Familiar|Ebenezer Cobham Brewer
Carbon, hydrogen, oxygen and nitrogen are all lifeless bodies.
Lay Sermons, Addresses and Reviews|Thomas Henry Huxley

He had to return to the conception of the individual particles of oxygen, nitrogen, and water, each a center of repulsion.
An Introduction to the History of Science|Walter Libby
We have already referred to the nitrogen question in the historical introduction.
Manures and the principles of manuring|Charles Morton Aikman

British Dictionary definitions for nitrogen

nitrogen

/ (ˈnaɪtrədʒən) /

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for nitrogen

nitrogen

A chemical element that makes up about four-fifths of the atmosphere of the Earth. Its symbol is N.

notes for nitrogen

Like carbon, nitrogen is a necessary element in the tissues of living things.

Medical definitions for nitrogen

nitrogen

[ nī′trə-jən ]

n. Symbol 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. Atomic number 7.

Scientific definitions for nitrogen

nitrogen

[ nī′trə-jən ]

N

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.

单词	nitrogen
释义	nitrogen [ nahy-truh-juhn ] / ˈnaɪ trə dʒən / noun Chemistry. 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. Symbol: N; atomic weight: 14.0067; atomic number: 7; density: 1.2506 grams/liter at 0°C and 760 millimeters pressure. Origin of nitrogen First recorded in 1785–95; from French nitrogène; see origin at nitro-, -gen Words nearby nitrogen nitrocotton, nitro dye, nitrofuran, nitrofurantoin, nitrogelatin, nitrogen, nitrogenase, nitrogen balance, nitrogen base, nitrogen cycle, nitrogen dioxide Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for nitrogen Grosvenor Place, which runs alongside the palace, has almost four times the maximum permissible amount of nitrogen dioxide. Pollution At The Palace\|Tom Sykes\|February 24, 2014\|DAILY BEAST In any case some allowance should be made for the amount of nitrogen collected by the legumes. The Pecan and its Culture\|H. Harold Hume If oxygen is combined with nitrogen, it produces five deadly poisons, viz. A Guide to the Scientific Knowledge of Things Familiar\|Ebenezer Cobham Brewer Carbon, hydrogen, oxygen and nitrogen are all lifeless bodies. Lay Sermons, Addresses and Reviews\|Thomas Henry Huxley He had to return to the conception of the individual particles of oxygen, nitrogen, and water, each a center of repulsion. An Introduction to the History of Science\|Walter Libby We have already referred to the nitrogen question in the historical introduction. Manures and the principles of manuring\|Charles Morton Aikman British Dictionary definitions for nitrogen nitrogen / (ˈnaɪtrədʒən) / 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 Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for nitrogen nitrogen A chemical element that makes up about four-fifths of the atmosphere of the Earth. Its symbol is N. notes for nitrogen Like carbon, nitrogen is a necessary element in the tissues of living things. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for nitrogen nitrogen [ nī′trə-jən ] n. Symbol 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. Atomic number 7. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for nitrogen nitrogen [ nī′trə-jən ] N 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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