nitrogen

Noun
  1. 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 (synset 114671413)
    is a type of:
    • chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
    • gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
    subtypes:
    substance meronym: air - a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
    same as: atomic number 7, n

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