TRACKBALL


Meaning of TRACKBALL in English

/ ˈtrækbɔːl; NAmE / (also ˈtracker ball , roller·ball ) noun

( computing ) a device containing a ball that is used instead of a mouse to move the cursor around the screen

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.