English

Noun

rollerball ‎(plural rollerballs)

1. A kind of ballpoint pen with a spherical nib that uses water-based liquid or gelled ink.
   • 2009 August 30, Laurie Winer, “Keeping Score”, in New York Times:

     The office is full of rumpled clothes and bad haircuts; it’s an operation at which rollerball pens fall outside the budget limit (Bics for everyone!)

2. (computing) A trackball.