• Frostbeard@lemmy.world
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      18 hours ago

      Lol. In case it’s a legitimate question, Commonly it means material that has a lot of stored energy, reacts exothermic and is self sustaining. Explosives is a typical example.

      • Abnorc@lemm.ee
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        9 hours ago

        Ahh it sounded like a fancy name for radioactive material to me. TIL!