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track ball

 - 2 dictionary results

track⋅ball

[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
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Computing Dictionary

track ball
tracker ball

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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