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blister gas:see poison gaspoison gas,
any of various gases sometimes used in warfare or riot control because of their poisonous or corrosive nature. These gases may be roughly grouped according to the portal of entry into the body and their physiological effects.
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blister gas[′blis·tər ‚gas]
Any of several war gases, such as lewisite, which cause burning, inflammation, or tissue destruction internally or externally.