CO





Definition:

  1. [noun] an odorless very poisonous gas that is a product of incomplete combustion of carbon
    Synonyms: carbon monoxide, carbon monoxide gas, CO

  2. [noun] a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
    Synonyms: balt, Co, atomic number 27

  3. [noun] one who refuses to serve in the armed forces on grounds of conscience
    Synonyms: nscientious objector, CO

  4. [noun] a state in west central United States in the Rocky Mountains
    Synonyms: Colorado, Centennial State, CO

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