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Definition of trackball noun from the Oxford Advanced Learner's Dictionary

trackball

noun
 
/ˈtrækbɔːl/
 
/ˈtrækbɔːl/
(also rollerball)
(computing)
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  1. a device containing a ball that is used instead of a mouse to move the cursor around the screen
See trackball in the Oxford Advanced American Dictionary
Check pronunciation: trackball

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