1. A type of pen that dispenses ink through a small rolling ball at its tip
   "She preferred writing with a rollerball for its smooth flow"
    
2. A fast-paced, violent futuristic sport featuring roller skates and motorcycles, as depicted in the 1975 film of the same name
   "The dystopian movie portrayed rollerball as a deadly spectator sport"

Derived forms: rollerballs

Encyclopedia: Rollerball