メガトンメガトンFreq.FrequencyTop 50,000Meanings1nounmegaton; MTUnit of explosive energy, especially for nuclear weapons; one megaton equals the energy of one million tons of TNT.その核かく爆ばく弾だんの威い力りょくは1メガトンと推すい定ていされている。The yield of that nuclear bomb is estimated at one megaton.
