• (British) enPR: măgnē'zēəm, IPA: /ˌmæɡˈniːzi.əm/
  • (America) enPR: măgnē'zēəm, IPA: /ˌmæɡˈnizi.əm/; enPR: măgnē'zhəm, IPA: /ˌmæɡˈniʒəm/

magnesium (uncountable)

  1. The chemical element (symbol Mg) with an atomic number of 12. It is a light, easily flammable, silvery-white alkaline earth metal.
    • 1999, Chapter 1 "Barrens" Cryptonomicon by Neal Stephenson
      The building looked only like a wall glowing in the firelight, but sometimes a barrage of magnesium blue light made its windowframes jump out of the darkness.
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