nitrogen
The word 'nitrógeno' in Spanish translates to 'nitrogen' in English. Nitrogen is a chemical element with the symbol N and atomic number 7. It is a colorless, odorless, tasteless gas that's the most plentiful element in Earth's atmosphere. Nitrogen is essential to life because it is a constituent of DNA and, as such, is part of the genetic code.
Nitrogen is essential for the growth of plants.
This sentence exemplifies the use of 'nitrógeno' when referring to the important role this element plays in plant development and nutrition.
The air we breathe is mainly nitrogen.
In this context, the word 'nitrógeno' is used to denote the fact that nitrogen makes up a substantial part of the Earth's atmosphere.
The nitrogen molecule is very stable.
This phrase uses 'nitrógeno' to speak about the chemically stable nature of nitrogen molecules in general.