Definition of mustard gas in English:

mustard gas

Syllabification: mus·tard gas

noun

  • A colorless oily liquid whose vapor is a powerful irritant and vesicant, used in chemical weapons.
    • Chemical formula: (ClCH2CH2)2S
    More example sentences
    • It has more than a million munitions, armed with 31,000 tons of chemical weapons including mustard gas.
    • A chemical weapon is any weapon that uses a manufactured chemical, such as sarin, mustard gas or hydrogen cyanide, to kill or injure.
    • All showed traces of blister gases, the army said, a group of chemical compounds which include mustard gas.

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