dichlorodiethyl sulfide

[dahy-klawr-oh-dahy-eth-uhl, -klohr-, -klawr-, -klohr-]

noun

Chemistry.

1. mustard gas.

Word History and Origins

Origin of dichlorodiethyl sulfide¹

di- ¹ + chloro- ² + di- ¹ + ethyl + sulfide