Meaning of megaton

meg•a•ton

Pronunciation: (meg'u-tun"), [key]
— n.
  1. one million tons.
  2. an explosive force equal to that of one million tons of TNT, as that of atomic or hydrogen bombs. Abbr.: MT
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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