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A Writer's Dictionary:

argon Definition


Dictionary Home » Words Starting with A » archduke ... argumentative » argon


argon
noun
    1. chem.
      (symbol Ar, atomic number 18) a colourless odourless inert gas, one of the noble gases, used to provide inert atmospheres in light bulbs, discharge tubes, and in arc welding.
Etymology: 19c: from a-2 + Greek ergon work.



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