exotoxin: a toxin that is secreted by microorganisms into the surrounding medium
toxin: a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species
nazarene: a member of a group of Jews who (during the early history of the Christian Church) accepted Jesus as the Messiah; they accepted the Gospel According to Matthew but rejected the Epistles of St. Paul and continued to follow Jewish law and celebrate Jewish holidays; they were later declared heretic by the Church of Rome