poison gas
Noun
Meaning
a gas that is poisonous to breath or contact; used in chemical warfare
Source: WordNetSynonyms
Antonyms
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Examples
I support freedom of expression, no matter whose, so I oppose DDoS attacks regardless of their target... they're the poison gas of cyberspace.
Afterward Larry felt as if he had been through a long pillow-fight in which all the pillows had been treated with a low-grade poison gas.
Politics are very much like war. We may even have to use poison gas at times.
You know we have this new poison gas - I've heard about it. The Fuehrer must do it. He must use it. Now he has to do it!
Pogroms are as old as Christendom; but without railways, the telegraph and poison gas there could have been no Holocaust. There have always been tyrannies; but without modern means of transport and communication, Stalin and Mao could not have built their gulags.
A general concern over the use of poison gas manifested itself in 1899 at the Hague Conference with a proposal prohibiting shells filled with asphyxiating gas.