track ball

trackball

[trak-bawl]
noun
a computer input device for controlling the pointer on a display screen by rotating a ball set inside a case.

Origin:
1975–1980

Dictionary.com Unabridged
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Collins
World English Dictionary
trackball or trackerball (ˈtrækˌbɔːl, ˈtrækəˌbɔːl)
 
n
computing a device consisting of a small ball, mounted in a cup, which can be rotated to move the cursor around the screen
 
trackerball or trackerball
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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FOLDOC
Computing Dictionary

track ball definition


tracker ball

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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