nitrogen cycle
Noun
Meaning
the circulation of nitrogen; nitrates from the soil are absorbed by plants which are eaten by animals that die and decay returning the nitrogen back to the soil
Source: WordNetSynonyms
Hypernyms
Examples
Denitrification main Denitrification is the reduction of nitrates back into nitrogen gas (N 2 ), completing the nitrogen cycle.
The diagram above shows how these processes fit together to form the nitrogen cycle.
In this way the nitrogen ( nitrogen cycle ) and the other nutrients ( nutrient cycle ) are recycled.
The processes of the nitrogen cycle transform nitrogen from one form to another.