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Vocabulary Entry
trackball
|noun
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N
noun
A pointing device consisting of a ball that can be rotated in any direction for controlling the cursor on a computer screen.
Example Sentences
"She prefers using a trackball over a traditional mouse for her graphic design work."
"After trying the trackball, he found it to be more comfortable for extended use."
"The trackball was a popular accessory in the early days of desktop computing."