mustard gas

== English == === Etymology === Calque of German Senfgas. === Pronunciation === === Noun === mustard gas (countable and uncountable, plural mustard gases) A highly cytotoxic vesicant, C4H8Cl2S, used in World War I that is known to cause skin burns, blisters, inflammation, edema, and potentially other respiratory effects. ==== Synonyms ==== dichlorodiethyl sulfide sulfur mustard, sulphur mustard yellow cross liquid yperite ==== Translations ====