Definitions of thrower:

• noun:   someone who projects something through the air (especially by a rapid motion of the arm)
• noun:   a craftsman who shapes pottery on a potter's wheel and bakes them it a kiln
• noun:   a person who twists silk or rayon filaments into a thread or yarn
• name:  A surname (rare: 1 in 50000 families; popularity rank in the U.S.: #6144)