What slang word describes a medical charlatan?

Which unit of distance, used for the solar system, equals about 93 million miles, the average Earth-Sun distance? What word names a meaty turkey leg as well as a classic sundae ice cream cone? A war between machines on the planet Cybertron over the AllSpark spills onto Earth in which 2007 film? What mechanical device is used to indicate musical tempo? Which California city is the seat of Santa Clara County? Which Medici became the first Grand Duke of Tuscany? What word names a medicinal solution believed to act as a cure-all? What word for a medieval Irish foot soldier is also the surname of "Show Boat" composer Jerome?