nerve gas 
noun [mass noun]
A poisonous vapour which has a rapid disabling or lethal effect by disrupting the transmission of nerve impulses.Chemical agents such as Sarin and nerve gas are produced in small quantities to test on protective equipment....
- Instead, these young men were exposed to chemical and biological substances including nerve gas, mustard gas, LSD and others.
- By itself it can be used as a flame retardant, but if mixed with other chemicals it becomes the main ingredient of sarin nerve gas.
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