dichloroethyl sulfide vs sulfur mustard

dichloroethyl sulfide and sulfur mustard both are nouns.

Word	Noun	Adjective	Verb	Adverb
dichloroethyl sulfide	Yes	No	No	No
sulfur mustard	Yes	No	No	No

As nouns, dichloroethyl sulfide and sulfur mustard are synonyms defined as:

dichloroethyl sulfide and sulfur mustard: a toxic war gas with sulfide based compounds that raises blisters and attacks the eyes and lungs; there is no known antidote

Other synonyms of dichloroethyl sulfide include blistering agent, mustard agent, mustard gas.

dichloroethyl sulfide (noun)	sulfur mustard (noun)
a toxic war gas with sulfide based compounds that raises blisters and attacks the eyes and lungs; there is no known antidote	a toxic war gas with sulfide based compounds that raises blisters and attacks the eyes and lungs; there is no known antidote