trackball
noun
track·ball ˈtrak-ˌbȯl 
: 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
Example Sentences
Recent Examples on the Web While that might have been the result of stiff competition from flashier new cabinets like Street Fighter II, Atari blamed the performance on the game's trackball controls. 
Kyle Orland, Ars Technica, 26 May 2022 For comparison, the MX Vertical is at the same angle, and Logitech's trackball mouse, the MX Ergo, is at a 20-degree angle. Scharon Harding, Ars Technica, 19 Apr. 2022 The Deck's version of trackpads includes the same mix of high sensitivity, mild haptic feedback, and trackball emulation, which allows a thumb to carefully nudge a mouse pointer or rapidly spin the viewport in a first-person shooter. Sam Machkovech, Ars Technica, 25 Feb. 2022 The keyboard and trackball were part of a larger control system for a nuclear missile silo command center. Scharon Harding, Ars Technica, 3 Dec. 2021 Showing them Centipede or Missile Command and how to use the trackball to play, soon piqued their interest. Andy Robertson, Forbes, 25 June 2021 That aside, there will be additional pads sold separately with trackball and other input options. Ollie Barder, Forbes, 7 June 2021 Integrated into Legends Ultimate is two sets of joysticks and six action buttons, two spinners/paddles, a trackball and customizable button mapping. Marc Saltzman, USA TODAY, 22 May 2021 In addition to traditional mice, Logitech also offers mice featuring a trackball, which is a spinning ball controlled by your thumb that acts as the mouse cursor. Kevin Luna, chicagotribune.com, 14 Apr. 2021 See More
Kyle Orland, Ars Technica, 26 May 2022 For comparison, the MX Vertical is at the same angle, and Logitech's trackball mouse, the MX Ergo, is at a 20-degree angle. Scharon Harding, Ars Technica, 19 Apr. 2022 The Deck's version of trackpads includes the same mix of high sensitivity, mild haptic feedback, and trackball emulation, which allows a thumb to carefully nudge a mouse pointer or rapidly spin the viewport in a first-person shooter. Sam Machkovech, Ars Technica, 25 Feb. 2022 The keyboard and trackball were part of a larger control system for a nuclear missile silo command center. Scharon Harding, Ars Technica, 3 Dec. 2021 Showing them Centipede or Missile Command and how to use the trackball to play, soon piqued their interest. Andy Robertson, Forbes, 25 June 2021 That aside, there will be additional pads sold separately with trackball and other input options. Ollie Barder, Forbes, 7 June 2021 Integrated into Legends Ultimate is two sets of joysticks and six action buttons, two spinners/paddles, a trackball and customizable button mapping. Marc Saltzman, USA TODAY, 22 May 2021 In addition to traditional mice, Logitech also offers mice featuring a trackball, which is a spinning ball controlled by your thumb that acts as the mouse cursor. Kevin Luna, chicagotribune.com, 14 Apr. 2021 See More Word History
First Known Use
1967, in the meaning defined above