di·phen·yl·chlo·ro·ar·sine \(|) ̷ ̷| ̷ ̷ ̷ ̷+ˌklōrōˈärˌsēn, -_sə̇n\noun alsodi·phen·yl·chlor·ar·sine\+ˌklōrˈär-\ Etymology:diphenyl + chlor- + arsine : a colorless crystalline arsenical (C6H5)2AsCl used during World War I especially by the Germans for producing a toxic smoke causing sneezing and vomiting