n. 氮化合, 氮饱和, 硝化作用

[化] 硝酸化作用

[医] 硝化[作用]

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.

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.

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]