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NITROGEN CYCLE
Pronunciation (US): | (GB): |
I. (noun)
Sense 1
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
Classified under:
Nouns denoting natural processes
Hypernyms ("nitrogen cycle" is a kind of...):
biological process; organic process (a process occurring in living organisms)