"organophosphate nerve agent"^^ . . "14970136-n"^^ . . . . . "114970136"^^ . "organophosphate nerve agent"@en-us . . . . . . . "114119242"@en-us . "0"^^ . "any of a series of nerve agents containing organophosphate compounds first synthesized by German chemists in 1936; in World War II the Germans tested them in concentration camps but not on the battlefield; Iraq is alleged to have used them against Iran and against the Kurds"@en-us . "0"^^ . . . . . .