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Biogeochemical cycle by which nitrogen is converted into various chemical forms
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmospheric, terrestrial
Nitrogen_cycle
Nuclear fusion reaction
In astrophysics, the carbon–nitrogen–oxygen cycle (CNO cycle), sometimes called Bethe–Weizsäcker cycle after Hans Albrecht Bethe and Carl Friedrich von
CNO_cycle
Natural nitrogen (7N) consists of two stable isotopes: the vast majority (99.62%) of naturally occurring nitrogen is nitrogen-14, with the remainder (0
Isotopes_of_nitrogen
Conversion of dinitrogen into ammonia
that use diatomic nitrogen as a step in the complete nitrogen cycle. Biological nitrogen fixation (BNF) occurs when atmospheric nitrogen is converted to
Nitrogen_fixation
Bacteria involved in decay of living matter
form of nitrogen. The nitrogen cycle is a vital part of life, and is essential to carry out biosynthesis of nitrogen containing compounds. Nitrogen is inaccessible
Putrefying_bacteria
Chemical transfer pathway between Earth's biological and non-biological parts
biogeochemical cycles include the carbon cycle, the nitrogen cycle and the water cycle. In each cycle, the chemical element or molecule is transformed and cycled by
Biogeochemical_cycle
Set of processes exchanging nutrients between parts of a system
nutrients is cyclic. Mineral cycles include the carbon cycle, sulfur cycle, nitrogen cycle, water cycle, phosphorus cycle, oxygen cycle, among others that continually
Nutrient_cycle
application of nitrogen-based agricultural fertilizer and by atmospheric pollution. The nitrogen cycle is one of the Earth's biogeochemical cycles. It involves
Lichens_and_nitrogen_cycling
Pollution type in a major American river
being within this watershed. Nitrogen undergoes the nitrogen cycle, where it is converted into different forms (i.e nitrogen ( N 2 {\displaystyle N_{2}}
Nitrate in the Mississippi River Basin
Nitrate_in_the_Mississippi_River_Basin
Transparent tank of water for fish and water-dwelling species
live in low-oxygen environments. The nitrogen cycle in an aquarium is only a portion of the complete cycle: nitrogen must be added to the system (usually
Aquarium
Environmental impact of agricultural and industrial nitrogen
Human impact on the nitrogen cycle is diverse. Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural
Human impact on the nitrogen cycle
Human_impact_on_the_nitrogen_cycle
Biogeochemical cycle
more phosphorus and nitrogen being added to these aquatic ecosystems. These all increase the amount of phosphorus that enters the cycle which has led to
Phosphorus_cycle
Blood test
Blood urea nitrogen (BUN) is a medical test that measures the amount of urea nitrogen found in blood. The liver produces urea in the urea cycle as a waste
Blood_urea_nitrogen
Chemical element with atomic number 7 (N)
Nitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table
Nitrogen
biogeochemical cycles for the elements calcium, carbon, hydrogen, mercury, nitrogen, oxygen, phosphorus, selenium, and sulfur; molecular cycles for water and
Marine_biogeochemical_cycles
Biogeochemical cycle of Fe2+/Fe3+
altered the cycle for Nitrogen from fossil fuel combustion and large-scale agriculture. Due to increased Iron and Nitrogen raises marine nitrogen fixation
Iron_cycle
Set of biochemical reactions
cannot easily and safely remove nitrogen as ammonia convert it to a less toxic substance, such as urea, via the urea cycle, which occurs mainly in the liver
Urea_cycle
Practice of containing fish
of plant litter. Although called the nitrogen "cycle" by hobbyists, in aquaria the cycle is not complete: nitrogen must be added (usually indirectly through
Fishkeeping
Accumulation of brine in a seafloor depression
is the dissimilatory reduction of nitrogen. This is predominantly due to the thermodynamic favorability of nitrogen-based metabolisms in anaerobic environments
Brine_pool
developed to better understand the water cycle at regional to global scales. Isoscapes of carbon and nitrogen isotopes have also been developed terrestrially
Isoscape
Productive wetlands that occur in coastal intertidal zones
Mark; Widdicombe, Steve (2011). "Bioturbation: Impact on the marine nitrogen cycle". Biochemical Society Transactions. 39 (1): 315–320. doi:10.1042/BST0390315
Mangrove_forest
Substance added to soil to enhance plant growth
James N. (16 January 2008). "An Earth-system perspective of the global nitrogen cycle". Nature. 451 (7176): 293–6. Bibcode:2008Natur.451..293G. doi:10.1038/nature06592
Fertilizer
Domestic aquatic pet disease
harmless, they can still lead to problems over time. Understanding the nitrogen cycle is essential for the keeping of any aquatic life. The source of ammonia
Ammonia_poisoning
Organic nitrogen from inorganic nitrogen
Nitrogen assimilation is the formation of organic nitrogen compounds like amino acids from inorganic nitrogen compounds present in the environment. Organisms
Nitrogen_assimilation
Chemical compound
Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula NH3. A stable binary hydride and the simplest pnictogen hydride, ammonia
Ammonia
Biogeochemical cycle for movement of water on Earth
The water cycle (or hydrologic cycle or hydrological cycle) is a biogeochemical cycle that involves the continuous change in form of water on, above and
Water_cycle
Reactive nitrogen ("Nr"), also known as fixed nitrogen, refers to all forms of nitrogen present in the environment except for molecular nitrogen (N 2).
Reactive_nitrogen
Soil pollution crisis
crisis is not N2 but other more reactive nitrogen compounds that are the result of human impact on the nitrogen cycle. In the Netherlands, the soil is burdened
Nitrogen crisis in the Netherlands
Nitrogen_crisis_in_the_Netherlands
Colorless gas with the formula NO
oxide (nitrogen oxide, nitrogen mono-oxide, or nitrogen monoxide) is a colorless gas with the formula NO. It is one of the principal oxides of nitrogen. Nitric
Nitric_oxide
Polyatomic ion (NO3, charge –1) found in explosives and fertilisers
it reacts with reductants in the process called denitrification (see Nitrogen cycle). Nitrate is used as a powerful terminal electron acceptor by denitrifying
Nitrate
Mechanism that maintains marine microbial diversity
thereby impacting global carbon cycles, budget, and even affecting temperature. Crucial nutrients, such as nitrogen, phosphorus, cellular components
Viral_shunt
Natural processes of carbon exchange
atmosphere of Earth. Other major biogeochemical cycles include the nitrogen cycle and the water cycle. Carbon is the main component of biological compounds
Carbon_cycle
Genus of bacteria
doubling time of about 13 hours. Nitrobacter play an important role in the nitrogen cycle by oxidizing nitrite into nitrate in soil and marine systems. Unlike
Nitrobacter
Organic matter on tree branches hosting epiphytes and other arboreal biomass
nutrients to be more closely cycled through an ecosystem, and prevents nutrients from being washed out of the system. The nitrogen cycle is most prevalent in
Canopy_soils
Limits not to be exceeded if humanity is to survive in a safe ecosystem
acidification, stratospheric ozone depletion, biogeochemical flows in the nitrogen cycle, excess global freshwater use, land system change, the erosion of biosphere
Planetary_boundaries
Organism that ingests organic carbon for nutrition
biogeochemical cycles particularly in the carbon, nitrogen, and sulfur cycles. Their metabolic activities impact the processing and cycling of elements through
Heterotroph
Plants in the family Fabaceae
tb00826.x. PMID 11681732. S2CID 38691512. Deacon, Jim. "The Nitrogen cycle and Nitrogen fixation". Institute of Cell and Molecular Biology, The University
Legume
Anaerobic respiration process by microbes
component of the terrestrial and oceanic nitrogen cycle. Unlike denitrification, it acts to conserve bioavailable nitrogen in the system, producing soluble ammonium
Dissimilatory nitrate reduction to ammonium
Dissimilatory_nitrate_reduction_to_ammonium
on the environment. Nitrogen is an element vital to many environmental processes. Nitrogen plays a vital role in the nitrogen cycle, a complex biogeochemical
Nitrogen and Non-Protein Nitrogen's effects on Agriculture
Nitrogen_and_Non-Protein_Nitrogen's_effects_on_Agriculture
Amino acids required in diet since they can not be synthesized in body
the total nitrogen intake is called net protein utilization. The amount of nitrogen retained divided by the (nitrogen intake minus nitrogen loss above
Essential_amino_acid
Chemical compound
ammonium a source of nitrogen and a key metabolite for many living organisms, but it is an integral part of the global nitrogen cycle. As such, human impact
Ammonium
Biological oxidation of ammonia/ammonium to nitrate
the intermediary nitrite. Nitrification is an important step in the nitrogen cycle in soil. The process of complete nitrification may occur through separate
Nitrification
Undersea unicellular organisms
inorganic nitrogen quantities and compositions, and all pathways of the nitrogen cycle are likely to be found at hydrothermal vents. Biological nitrogen fixation
Hydrothermal vent microbial communities
Hydrothermal_vent_microbial_communities
Liquid by-product of animal metabolism
urinate through the cloaca. Urine plays an important role in the earth's nitrogen cycle. In balanced ecosystems, urine fertilizes the soil and thus helps plants
Urine
Bacteria and archaea producing ammonia
Diazotrophs are organisms capable of nitrogen fixation, i.e. converting the relatively inert diatomic nitrogen (N2) in Earth's atmosphere into bioavailable
Diazotroph
Organic compound
most notably nitrogen excretion. In the liver, it forms by the condensation of ammonia (NH3) and carbon dioxide (CO2) in the urea cycle. Urea is widely
Urea
Scientific technique
Nitrogen-15 (15N) tracing is a technique to study the nitrogen cycle using the heavier, stable nitrogen isotope 15N. Despite the different weights, 15N
Nitrogen-15_tracing
Type of pollution caused by agriculture
processes involved in the nitrogen cycle because they are the largest inputs and outputs of nitrogen to ecosystems. They allow nitrogen to flow between the
Agricultural_pollution
Class of chemical compounds
in charge of the fate of nitrogen in soil and water. AHL-mediated quorum sensing has an important role in the nitrogen cycle. All nitrifying bacteria
N-Acyl_homoserine_lactone
Fish tank water filter
method used for maintenance of healthy aquaria. Proper management of the nitrogen cycle is a vital element of a successful aquarium. Excretia and other decomposing
Aquarium_filter
Bacteria using nitrate and nitrite as a terminal electron acceptor
and archaea, is capable of performing denitrification as part of the nitrogen cycle. Denitrification is performed by a variety of denitrifying bacteria
Denitrifying_bacteria
Large body of salt water
Earth's climate and has important roles in the water, carbon, and nitrogen cycles. The surface of the water interacts with the atmosphere, exchanging
Sea
Biochemical process in marine environments
nitrogen. Understanding marine nitrogen fixation is crucial to the study of global nitrogen cycling. Research indicates an imbalance between nitrogen
Marine_nitrogen_fixation
Anaerobic ammonium oxidation, a microbial process of the nitrogen cycle
ammonium oxidation’, is a globally important microbial process of the nitrogen cycle that takes place in many natural environments. The bacteria mediating
Anammox
Nutrient deficiency
Nitrogen deficiency is a medical condition where a plant is unable to obtain enough nitrogen from the soil. This can lead to stunting, lack of flowering
Nitrogen_deficiency
Genus of bacteria
soil microbes that play an important role in the nitrogen cycle in nature, binding atmospheric nitrogen, which is inaccessible to plants, and releasing
Azotobacter
Impact of human life on Earth and environment
life cycle emissions associated with use of petroleum diesel. Life cycle emissions of hydrocarbons were 35% higher and emission of various nitrogen oxides
Human impact on the environment
Human_impact_on_the_environment
Accumulation of nutrients in water
waste or sewage discharged into a river or the sea Nitrogen cycle – Biogeochemical cycle by which nitrogen is converted into various chemical forms Trophic
Eutrophication
Domain of organisms
diversity permits them to play multiple ecological roles: carbon fixation; nitrogen cycling; organic compound turnover; and maintaining microbial symbiotic and
Archaea
Chemical compound
Dinitrogen tetroxide, commonly referred to as nitrogen tetroxide (NTO), and occasionally (usually among ex-USSR/Russian rocket engineers) as amyl, is the
Dinitrogen_tetroxide
Colourless non-flammable greenhouse gas
human perturbation of the natural nitrogen cycle through the use of synthetic fertilizers and manure, as well as nitrogen deposition resulting from land-based
Nitrous_oxide
Grass damage by cattle urine
and denitrification are two microbial processes that are part of the nitrogen cycle. While denitrification contributes to the bulk production of nitrous
Cattle_urine_patches
nitrate minimizes stress and injury to aquarium fish. 'Cycling' is not identical to the 'nitrogen cycle', as here it is referring specifically to the process
Fishless_cycling
Chemical compound with formula NH4NO3
does not form hydrates. It is predominantly used in agriculture as a high-nitrogen fertilizer. Its other major use is as a component of explosive mixtures
Ammonium_nitrate
Species of fish
to clean algae from fish tanks, but it also contributes waste to the nitrogen cycle. It is difficult for other fish to harass, both due to the semiaggressive
Hypostomus_plecostomus
Genus of bacteria
fix nitrogen. Nitrogen fixation is an important part of the nitrogen cycle. Plants cannot use atmospheric nitrogen (N2); they must use nitrogen compounds
Bradyrhizobium
Reduction of nitrate as a form of anaerobic respiration
oxide (N2O), finally resulting in the production of N2, completing the nitrogen cycle. Denitrifying microbes require a very low oxygen concentration of less
Denitrification
Biogeochemical cycle of oxygen
O_{2}+O} \qquad (\lambda \lesssim 300~{\text{nm}})} Carbon cycle Nitrogen cycle Hydrogen cycle Dark oxygen Knoll AH, Canfield DE, Konhauser K (2012). "7"
Oxygen_cycle
Industrial process for ammonia production
to a buildup of reactive nitrogen in the biosphere, causing an anthropogenic disruption to the nitrogen cycle. Since nitrogen use efficiency is typically
Haber_process
Biogeochemical cycle
The ozone–oxygen cycle is the process by which ozone is continually regenerated in Earth's stratosphere, converting ultraviolet radiation (UV) into heat
Ozone–oxygen_cycle
Fruiting body of a subterranean ascomycete fungus
role in nutrient exchange in the nitrogen cycle by accessing nitrogen unavailable to host plants and acting as nitrogen sinks in forests. Glomus spp. are
Truffle
Solution of urea and ammonium nitrate in water used as a fertilizer
Solution Tom Dorn, Extension Educator, Nitrogen Sources University of Nebraska Fact Sheet 288-01 "32% Nitrogen Fertiliser". Eutrema. 2026-05-30. Retrieved
UAN
Geochemical transformation of silicate rocks
The carbonate–silicate geochemical cycle, also known as the inorganic carbon cycle, describes the long-term transformation of silicate rocks to carbonate
Carbonate–silicate_cycle
Hydrogen exchange between the living and non-living world
The hydrogen cycle consists of hydrogen exchanges between biotic (living) and abiotic (non-living) sources and sinks of hydrogen-containing compounds
Hydrogen_cycle
is known as a carbon-nitrogen-oxygen or (CNO cycle). In addition to this cycle, stars also have a helium cycle. Various cycles involving gas and dust
Chemical_cycling
Genus of bacteria
are important in the global biogeochemical nitrogen cycle because they increase the bioavailability of nitrogen to plants and play a role in denitrification
Nitrosomonas
Excrement of seabirds or bats
bats. Guano is a highly effective fertiliser due to the high content of nitrogen, phosphate, and potassium, all key nutrients essential for plant growth
Guano
Overview of history and methods to produce NH3
greenhouse gasses. Ammonia production also introduces nitrogen into the Earth's nitrogen cycle, causing imbalances that contribute to environmental issues
Ammonia_production
2024 protests by farmers in the European Union due to climate policies
started over proposals and legislation to limit human impact on the nitrogen cycle. The farmers' protests in the Netherlands has led to the growth of the
2023–2024 European Union farmers' protests
2023–2024_European_Union_farmers'_protests
Agricultural cycle – Carbon cycle – Crop rotation – Fertile Crescent – Harvest – Nitrogen cycle – Organic farming – Phosphorus cycle – Season – Sulfur cycle – Soil
List_of_cycles
Study of living things in soil
roles that bacteria play are: Nitrification is a vital part of the nitrogen cycle, wherein certain chemolithotrophic nitrifying bacteria (e.g. Nitrosomonas)
Soil_biology
Plant part
plants, primarily legumes, that form a symbiosis with nitrogen-fixing bacteria. Under nitrogen-limiting conditions, capable plants form a symbiotic relationship
Root_nodule
Family of legume flowering plants
nitrogen gas (N2) out of the air and convert it to a form of nitrogen that is usable to the host plant (NO3− or NH3). This process is called nitrogen
Fabaceae
Provision to cells and organisms to support life
is cyclic. Mineral cycles include the carbon cycle, sulfur cycle, nitrogen cycle, water cycle, phosphorus cycle, and oxygen cycle, among others that continually
Nutrition
A nitrogen fixation package is a piece of research equipment for studying nitrogen fixation in plants. One product of this kind, the Q-Box NF1LP made by
Nitrogen_fixation_package
Animal that feeds on decomposing plant and animal parts as well as faeces
et al. (SCOPE) (March 1988). "Nitrogen in benthic food chains." (PDF). In Blackbrun TH, Sorensen J (eds.). Nitrogen cycling in coastal marine environments
Detritivore
Neoproterozoic surge in atmospheric oxygen
of occupying marine planktonic niches and consequent changes to the nitrogen cycle during the Cryogenian are believed to be a culprit behind the rapid
Neoproterozoic oxygenation event
Neoproterozoic_oxygenation_event
Biogeochemical cycle
throughout its cycle. These processes are influenced by various microbial populations and cycling of other elements such as carbon, nitrogen, and sulfur
Gold_cycle
Portmanteau name for nitrite derivatives
pharmaceutical industries. The nitrite anion is a pervasive intermediate in the nitrogen cycle in nature. The name nitrite also refers to organic compounds having
Nitrite
Chemical compound, [NH3OH]Cl
nitrite and ammonium into dinitrogen gas) which are important in the nitrogen cycle in soil and in wastewater treatment plants. Hydroxylammonium chloride
Hydroxylammonium_chloride
Relative dating using nitrogen extraction from bones
Nitrogen dating is a form of relative dating which relies on the reliable breakdown and release of amino acids from bone samples to estimate the age of
Nitrogen_dating
Liquid state of nitrogen
Liquid nitrogen (LN2) is nitrogen in a liquid state at low temperature. It has a boiling point of about −196 °C (−321 °F; 77 K). Liquid nitrogen is produced
Liquid_nitrogen
Earth's dry surface
in Earth's climate system, being involved in the carbon cycle, nitrogen cycle, and water cycle. One-third of land is covered in trees, another third is
Land
with untreated urea. Controlled-release fertiliser Nitrogen cycle Schwab, G.J. and L.W. Murdock. Nitrogen Transformation Inhibitors and Controlled Release
Ammonia volatilization from urea
Ammonia_volatilization_from_urea
conversion processes was discovered within the genus Nitrospira, and the nitrogen cycle was updated. Within the genus Nitrospira, the major ecosystems comammox
Comammox
Enzyme necessary for the process of nitrogen fixation
component of the nitrogen cycle, vanadium nitrogenase converts nitrogen gas to ammonia, thereby making otherwise inaccessible nitrogen available to plants
Vanadium_nitrogenase
Term for nitric oxide and nitrogen dioxide
atmospheric chemistry, NOx is shorthand for nitric oxide (NO) and nitrogen dioxide (NO2), the nitrogen oxides that are most relevant for air pollution. These gases
NOx
nitrification-denitrification is the conversion of the ammonium ion to nitrogen gas in a single bioreactor. The process is dependent on floc characteristics
Simultaneous nitrification–denitrification
Simultaneous_nitrification–denitrification
Any chemical compound having at least one nitrogen atom
The chemical element nitrogen is one of the most abundant elements in the universe and can form many compounds. It can take several oxidation states; but
Nitrogen_compounds
Organic compounds containing amine and carboxylic groups
total nitrogen content of organic matter is mainly formed by the amino groups in proteins. The total Kjeldahl nitrogen (TKN) is a measure of nitrogen widely
Amino_acid
NITROGEN CYCLE
NITROGEN CYCLE
Male
Spanish
Spanish name of Germanic origin, possibly GUIOMAR means "famous in battle." In the 13th century Vulgate Cycle of Arthurian romance, Sir Guiomar is the proud and beautiful knight of the crystal stream.
Boy/Male
Tamil
Janardhan | ஜநாரà¯à®¤à®¨
Lord Krishna, One who helps people, Liberator from the cycle of birth and death
Janardhan | ஜநாரà¯à®¤à®¨
Boy/Male
Hindu
Lord Krishna, One who helps people, Liberator from the cycle of birth and death
Boy/Male
Tamil
Janardhana | ஜநாரà¯à®¤à®¾à®¨à®¾
Lord Krishna, One who helps people, Liberator from the cycle of birth and death
Janardhana | ஜநாரà¯à®¤à®¾à®¨à®¾
Boy/Male
Assamese, Hindu, Indian, Marathi
The Healer; Vishnu; Who Cures the Disease of Birth and Death Cycles
Girl/Female
Hindu, Indian, Traditional
The Periphery or Rim of a Wheel or Cycle
Male
Irish
Irish name CAILTE means "the thin man." This is the name of a character from the Fenian cycle.
Boy/Male
Hindu
Lord Krishna, One who helps people, Liberator from the cycle of birth and death
Boy/Male
Hindu
Lord Krishna, One who helps people, Liberator from the cycle of birth and death
Boy/Male
Tamil
Janardana | ஜநாரà¯à®¤à®¨
Lord Krishna, One who helps people, Liberator from the cycle of birth and death
Janardana | ஜநாரà¯à®¤à®¨
Boy/Male
Tamil
Jaramarana Varjita | ஜராமாஂரநா வரà¯à®œà¯€à®¤à®¾
Free from the cycle of births and deaths
Jaramarana Varjita | ஜராமாஂரநா வரà¯à®œà¯€à®¤à®¾
Surname or Lastname
English and French
English and French : from a Germanic personal name composed of the elements ragin ‘counsel’ + hard ‘hardy’, ‘brave’, ‘strong’, which was introduced into England by the Normans in the form Re(i)nard. This was the name borne by the cunning fox in the popular medieval cycle of beast tales, with the result that from the 13th century it began to replace the previous Old French word for the animal. Some French examples may be nicknames for crafty individuals, referring to the fox’s reputation for cunning.
Boy/Male
Hindu
Lord Krishna, One who helps people, Liberator from the cycle of birth and death
Boy/Male
Tamil
Janardan | ஜநாரà¯à®¤à®¨
Lord Krishna, One who helps people, Liberator from the cycle of birth and death
Janardan | ஜநாரà¯à®¤à®¨
Boy/Male
Hindu
Free from the cycle of births and deaths
Boy/Male
Hindu, Indian, Marathi
Vishnu; The Healer; Who Cures the Disease of Birth and Death Cycles
NITROGEN CYCLE
NITROGEN CYCLE
Girl/Female
Gaelic American Celtic Welsh Irish English Latin Native American
Gaelic forms of Agnes.
Girl/Female
American, Anglo, Australian, British, Christian, English, French, Greek, Irish, Welsh
Pearl; Strong and Capable; Precious; Diminutive of Margaret
Boy/Male
German, Greek, Hebrew
Behold a Son
Girl/Female
Tamil
Narmada river
Surname or Lastname
English
English : unexplained.Possibly a variant spelling of Catalan Daguer, from daguer ‘knife smith’.
Girl/Female
Tamil
Nagaraja | நாகராஜாÂ
Lord Nagaraja
Boy/Male
American, British, English
Modern Blend of the English Names Larry and Darnell
Boy/Male
Biblical
The world, rustiness.
Girl/Female
Indian, Punjabi, Sikh
One who Loves the Lord's Lotus Feet
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Creation
NITROGEN CYCLE
NITROGEN CYCLE
NITROGEN CYCLE
NITROGEN CYCLE
NITROGEN CYCLE
n.
The act or process of freeing from nitrogen; also, the condition resulting from the removal of nitrogen.
n.
An apparatus for measuring or determining the proportion of nitrogen; a nitrometer.
a.
Devoid of nitrogen; as, a nonnitrogenous principle; a nonnitrogenous food. See the Note under Food, n., 1.
v. t.
To combine or impregnate with nitrogen; to convert, by oxidation, into nitrous or nitric acid; to subject to, or produce by, nitrification.
n.
The act, process, or result of combining with nitrogen or some of its compounds.
v. t.
To deprive of, or free from, nitrogen.
n.
The act or process of oxidizing nitrogen or its compounds so as to form nitrous or nitric acid.
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.
n.
A binary compound of nitrogen with a more metallic element or radical; as, boric nitride.
n.
Same as Nitrogen.
v. t.
To impregnate with azote, or nitrogen; to nitrogenize.
a.
Of, pertaining to, or resembling, nitrogen; as, a nitrogenous principle; nitrogenous compounds.
a.
Pertaining to azote, or nitrogen; formed or consisting of azote; nitric; as, azotic gas; azotic acid.
v. t.
To combine, or impregnate, with nitrogen or its compounds.
a.
Containing, or derived from, carbon and nitrogen.
a.
See Nitrous.
a.
Containing or derived from nitrogen having a lower valence than in nitrous compounds.
n.
An apparatus for determining the amount of nitrogen or some of its compounds in any substance subjected to analysis; an azotometer.
n.
A compound of nitrogen and boro/, which, when heated before the blowpipe, gives a brilliant phosphorescent; boric nitride.