Pronunciation: (u-mon"u-fi-kā'shun, u-mō"nu-), [key]
1. the act of impregnating with ammonia, as in the manufacture of fertilizer.
2. the state of being so impregnated.
3. the formation of ammonia or its compounds by decomposition of organic matter.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.