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nitrogen

nounmasculinetécnico/ni.tɾu.ʒɨ.ni.u/medium

ni·tro·gé·ni·o

Definition

A chemical element that is a colorless, odorless gas, symbol N, atomic number 7, constituting about 78% of the Earth's atmosphere.
Nitrogen is essential for protein synthesis in plants.
The air we breathe is mostly composed of nitrogen.
Common collocations
nitrogen cyclenitrogen fixationnitrogen gas

Etymology

Do francês 'nitrogène', do grego 'nitron' (salitre) + '-genes' (gerador).

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