NITRIFY
nitrify
(verb) treat (soil) with nitrates
nitrify, nitrogenize, nitrogenise
(verb) treat with nitrogen or a nitrogen compound
nitrify
(verb) convert into nitric acid, nitrous acid, or nitrate, especially with the action of nitrobacteria
Source: WordNet® 3.1
Verb
nitrify (third-person singular simple present nitrifies, present participle nitrifying, simple past and past participle nitrified)
(transitive) To treat, or react with nitrogen or a nitrogen-containing compound.
(transitive) To convert ammonia or similar compound to a nitrate by oxidation, especially by the action of a microorganism.
(intransitive) To become nitre.
Antonyms
• denitrify
Source: Wiktionary
Ni"tri*fy, v. t. [imp. & p. p. Nitrified; p. pr. & vb. n.
Nitrifying.] Etym: [Niter + -fy: cf. F. nitrifer. See Niter.] (Chem.)
Definition: To combine or impregnate with nitrogen; to convert, by
oxidation, into nitrous or nitric acid; to subject to, or produce by,
nitrification.
Source: Webster’s Unabridged Dictionary 1913 Edition