Nitrogen

//ˈnaɪ.tɹə.d͡ʒən// noun

noun ·Moderate ·High school level

Definitions

Noun
  1. 1
    The chemical element with an atomic number of 7 and atomic weight of 14.0067. It is a colorless and odorless gas. uncountable

    "Holonyms: dinitrogen, N₂, nitrogen (loose sense)"

  2. 2
    a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues wordnet
  3. 3
    Molecular nitrogen (diatomic nitrogen), N₂, a colorless, odorless gas at room temperature, which constitutes most of air (78% of it). uncountable

    "Meronyms: nitrogen (strict sense), N"

  4. 4
    A specific nitrogen atom within a chemical formula, or a specific isotope of nitrogen. countable

    "The two nitrogens are located next to one another on the ring."

Synonyms

All synonyms
acetyleneammoniaargonasphyxiating gasatomic number 7azote

Example

More examples

"The air we breathe consists of oxygen and nitrogen."

Etymology

Borrowed from French nitrogène (coined by French chemist and physician Jean-Antoine Chaptal in 1790). By surface analysis, nitro- + -gen. See also niter.

Related phrases

carbon-nitrogen cyclecarbon-nitrogen-oxygen cyclelean nitrogen oxide trapliquid nitrogennitrogen balancenitrogen cyclenitrogen dioxidenitrogen fixationnitrogen fixernitrogen fixingnitrogen icenitrogen inversion

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.