1. a computer input device consisting of a ball that rotates in a socket and controls cursor movement on a screen
Usage: computing

Examples

• She preferred using a trackball instead of a regular mouse for graphic design work.
• The old computer came with a trackball that required frequent cleaning.
• Many arcade games in the 1980s used trackballs for player control.
• The trackball allows for precise cursor movement without lifting your hand.
• He found the trackball more comfortable for his wrist than a traditional mouse.
• The laptop’s built-in trackball was located between the keyboard keys.