Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Trackball" Definition
noun
A ball mounted in a stationary housing and rotated to control a pointer on a computer screen.
Source: American Heritage Dictionary
A ball that is mounted usually in a computer console so as to be only partially exposed and that is rotated to control the movement of a cursor on a display.
Source: Merriam-Webster
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