What is another word for sulfur mustard?
Pronunciation: [sˈʌlfɜː mˈʌstəd] (IPA) 
Sulfur mustard is a chemical weapon that is prohibited for use under international law. It is a highly toxic and reactive substance that causes severe burns and respiratory damage. There are several synonyms for sulfur mustard that are used in scientific and medical literature. These include mustard gas, yperite, lewisite, and nitrogen mustard. Mustard gas is the most commonly used synonym for sulfur mustard since it is the historical name that was first used during World War I. Yperite was the name given by the Germans during the same war. Lewisite and nitrogen mustard are two other chemical weapons that share some similarities with sulfur mustard.
