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trackball

[trak-bawl] /ˈtrækˌbɔl/
noun
1.
a computer input device for controlling the pointer on a display screen by rotating a ball set inside a case.
Origin
1975-1980
1975-1980
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for trackball
  • Manufacturers introduced the trackball, based on the same technology, as an alternative to the mouse on laptop computers.
  • Dorothy is controlled entirely with the touchscreen, which has a virtual emerald trackball on it.
  • The pointing device is a trackball that does not fit on the keyboard platform.
  • The keyboard and trackball shall allow for either left or right handed use.
  • Visitors use a trackball to scroll across the screen which describes the sanctuary's features as they go.
  • Device that moves the onscreen pointer by spinning a rubber trackball.
British Dictionary definitions for trackball

trackball

/ˈtrækˌbɔːl/
noun
1.
(computing) a device consisting of a small ball, mounted in a cup, which can be rotated to move the cursor around the screen
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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