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  1. Oxford Dictionary

    gigaton

    • IPA[ˈɡɪɡətʌn]
    • n.
      a unit of explosive power equivalent to one (109) billion tons of TNT

    • noun: gigaton, plural noun: gigatons

    • 釋義

    名詞

    • 1. a unit of explosive power equivalent to one (109) billion tons of TNT Saturday's 8.8-magnitude quake unleashed about 50 gigatons of energy