Ammonification

noun

1. Impregnation with ammonia or an ammonium compound.
2. Production of ammonia or ammonium compounds in the decomposition of organic matter, especially through the action of bacteria.
3. The act of impregnating with ammonia, as for fertilization, or the state of being so impregnated.
4. The formation of ammonia or its compounds from nitrogenous compounds, especially as a result of bacterial decomposition.
5. The treatment or impregnation of something with ammonia.