Longman Dictionary of Contemporary English homepage

Date: 1700-1800
Language: French
Origin: nitrogène, from nitre ( NITIC ACID) + -gène 'producing'

nitrogen

noun
     
Related topics: Elements
ni‧tro‧gen [uncountable]
HCEHE a gas that has no colour or smell, and that forms most of the Earth's air. It is a chemical element: symbol N

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary