Nitrogen (noun)

A colorless, odorless, tasteless, nonflammable gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living tissues.

Origin:

From french nitrogène, from nitre (saltpetre) + -gène, from greek nitron + -genēs, literally "nitre-producing".

Examples:

1. The atmosphere of Venus is mostly composed of nitrogen.
2. Nitrogen is an important component of fertilizers.
3. Nitrogen gas is used to preserve packaged food items.
4. The process of nitrogen fixation is essential for plants to grow.
5. Nitrogen is essential for the growth and survival of all living organisms.