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Definition of nitrogen noun from the Oxford Advanced Learner's Dictionary

nitrogen

noun
 
/ˈnaɪtrədʒən/
 
/ˈnaɪtrədʒən/
 [uncountable]
(symbol N)
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  1. a chemical element. Nitrogen is a gas that is found in large quantities in the earth’s atmosphere.Topics Physics and chemistryc1
    Oxford Collocations DictionaryNitrogen is used before these nouns:
    • atom
    • fertilizer
    See full entry
    Word Originlate 18th cent.: from French nitrogène (from nitre, from Latin nitrum, from Greek nitron + -gen).
See nitrogen in the Oxford Advanced American DictionarySee nitrogen in the Oxford Learner's Dictionary of Academic English
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