rollerball

English

Etymology

roller +‎ ball

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.
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