TRACKBALL

Trackball

A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down mouse with an exposed protruding ball. The user rolls the ball with the thumb, fingers, or the palm of the hand to move a pointer.

The above text is a snippet from Wikipedia: Trackball
and as such is available under the Creative Commons Attribution/Share-Alike License.

trackball

Noun

  1. A pointing device consisting of a ball housed in a socket


The above text is a snippet from Wiktionary: trackball
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!