nitrogen

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Pronunciation[change]

  • IPA: /ˈnaɪtɹədʒən/
  • (file)
  • Hyphenation: ni‧tro‧gen

Noun[change]

Singular
nitrogen

Plural
none

  1. (uncountable) Nitrogen is a colourless gas that has an atomic number of 7 and the symbol N.
    The air we breathe is mostly made of nitrogen.
    Nitrogen does not react very easily.
    Liquid nitrogen is used to keep other things very cold.