Nitrification

Nitrification
Nitrification Ni`tri*fi*ca"tion, n. [Cf. F. nitrification. see {Nitrify}.] 1. (Chem.) (a) The act, process, or result of combining with nitrogen or some of its compounds. (b) The act or process of oxidizing nitrogen or its compounds so as to form nitrous or nitric acid. [1913 Webster]

2. A process of oxidation, in which nitrogenous vegetable and animal matter in the presence of air, moisture, and some basic substances, as lime or alkali carbonate, is converted into nitrates. [1913 Webster]

Note: The process is going on at all times in porous soils and in water contaminated with nitrogenous matter, and is supposed to be due to the presence of a bacteria, such as members of the genus {Azotobacter}, formerly called nitrification ferments. In former times the process was extensively made use of in the production of saltpeter. [1913 Webster +PJC]


The Collaborative International Dictionary of English. 2000.

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  • nitrification — [ nitrifikasjɔ̃ ] n. f. • 1797; de nitrifier ♦ Chim. Transformation en nitrates de l ammoniac et des sels ammoniacaux. La nitrification se fait en deux temps (nitrosation; nitration), sous l influence de bactéries (nitrobactéries). Bacille qui… …   Encyclopédie Universelle

  • nitrification — (n.) 1827, from Fr. nitrification (1787, de Morveau), from nitrifier (1777), from nitre (see NITRE (Cf. nitre)) …   Etymology dictionary

  • Nitrification — Nitrogen cycle Nitrification is the biological oxidation of ammonia with oxygen into nitrite followed by the oxidation of these nitrites into nitrates. Degradation of ammonia to nitrite is usually the rate limiting step of nitrification.… …   Wikipedia

  • Nitrification — Diagramme montrant le cycle de l azote. La nitrification est un processus, contrôlé par l action de certains micro organismes spécifiques, qui conduit à la transformation de l ammoniac en nitrite (nitrosation par Nitrosomonas) puis à la… …   Wikipédia en Français

  • nitrification — (ni tri fi ka sion) s. f. Terme de chimie. Opération naturelle par laquelle il se forme des nitrates ou du nitre. L air est indispensable dans la nitrification, Instr. sur la fabric. du salpêtre, p. 20 …   Dictionnaire de la Langue Française d'Émile Littré

  • nitrification — nitrifikacija statusas T sritis chemija apibrėžtis Aerobinių mikroorganizmų sukelta amonio junginių oksidacija iki nitratų. atitikmenys: angl. nitrification rus. нитрификация …   Chemijos terminų aiškinamasis žodynas

  • nitrification — nitrifikacija statusas T sritis ekologija ir aplinkotyra apibrėžtis Aerobinių mikroorganizmų (nitritinių ir nitratinių bakterijų) sukelta amonio junginių oksidacija iki nitratų dirvožemyje ir vandenyje. Būtinos sąlygos – pakankamas deguonies… …   Ekologijos terminų aiškinamasis žodynas

  • nitrification — nitrify ► VERB (nitrifies, nitrified) ▪ convert (ammonia or another nitrogen compound) into nitrites or nitrates. DERIVATIVES nitrification noun …   English terms dictionary

  • nitrification — noun Date: 1827 the oxidation (as by bacteria) of ammonium salts to nitrites and the further oxidation of nitrites to nitrates …   New Collegiate Dictionary

  • NITRIFICATION — n. f. Opération par laquelle se forme le nitrate …   Dictionnaire de l'Academie Francaise, 8eme edition (1935)

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