Definition of rollerball in US English:

rollerball

noun

  • 1A ballpoint pen using thinner ink than other ballpoints.

    • ‘Available in several shapes, sizes, finishes and tips (including rollerball, ballpoint and fountain), all of the pens are refillable and are guaranteed for life against mechanical failure due to faulty materials or workmanship.’
    • ‘Except for the fact that he carried a large messenger bag and preferred a rollerball pen to a quill, he would have fit the stereotype to the letter, had the general populace remembered what the stereotype was.’
    • ‘It's 5pm, and I'm sitting at a picnic table on the rec field with a writing pad and an ink rollerball.’
  • 2Computing
    An input device containing a ball which is moved with the fingers to control the cursor.

    • ‘The sonar workstations with rollerball controls.’
    • ‘This is a metal keyboard with a rollerball and click button.’
    • ‘The choice of pointing device - be it a touchpad, rollerball or pointing stick - is likewise a matter of personal taste.’
    • ‘As with keyboards, there are lots of mice, rollerballs, graphics and other types of input devices to suit every taste.’
    • ‘There are lots of alternatives to the basic mouse, such as rollerballs and pens, but a free option you might like to try is the MouseTool.’

Pronunciation

rollerball

/ˈrōlərˌbôl//ˈroʊlərˌbɔl/