Try Our Apps


Avoid these words. Seriously.


[nahy-truh-fi-key-shuh n] /ˌnaɪ trə fɪˈkeɪ ʃən/
the act of nitrifying.
Origin of nitrification
First recorded in 1820-30; nitr- + -i- + -fication Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
Examples from the Web for nitrification
Historical Examples
British Dictionary definitions for nitrification


the oxidation of the ammonium compounds in dead organic material into nitrites and nitrates by soil nitrobacteria, making nitrogen available to plants See also nitrogen cycle
  1. the addition of a nitro group to an organic compound
  2. the substitution of a nitro group for another group in an organic compound
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
Cite This Source
Word Origin and History for nitrification

1827, from French nitrification (1787, de Morveau), from nitrifier (1777), from nitre (see nitre).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
nitrification in Medicine

nitrification ni·tri·fi·ca·tion (nī'trə-fĭ-kā'shən)

  1. The oxidation of an ammonia compound into nitric acid, nitrous acid, or any nitrate or nitrite, especially by the action of bacteria.

  2. The treatment or combination of a substance with nitrogen or compounds containing nitrogen.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
nitrification in Science
The process by which bacteria in soil and water oxidize ammonia and ammonium ions and form nitrites and nitrates. Because the nitrates can be absorbed by more complex organisms, as by the roots of green plants, nitrification is an important step in the nitrogen cycle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Nearby words for nitrification

Difficulty index for nitrification

Few English speakers likely know this word

Word Value for nitrification

Scrabble Words With Friends