dentist's drill: a high speed drill that dentists use to cut into teeth
drill: a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
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