nerve agent

noun
🔊/ˈnɜːv eɪdʒənt/
🔊/ˈnɜːrv eɪdʒənt/
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  1. a substance that damages the nervous system, especially one used as a weapon
    • Chemical weapons, including nerve agents and mustard gas, have been banned under international law since the 1990s.自1990年代以来,国际法已禁止包括神经毒剂和芥子气在内的化学武器。