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Noun: VX gas
  1. A highly lethal nerve agent used in chemical warfare; a toxic liquid that penetrates the skin or lungs to disrupt the nervous system and stop respiration; in combat VX gas is deployed by detonating a container over the target area and can persist in the environment up to several weeks after release
    "VX gas is one of those things we wish we could disinvent"

Type of: nerve agent, nerve gas

Encyclopedia: VX gas