trackball
[ trak-bawl ]
/ ˈtrækˌbɔl /
noun
a computer input device for controlling the pointer on a display screen by rotating a ball set inside a case.
Origin of trackball
First recorded in 1975–1980
Words nearby trackball
British Dictionary definitions for trackball
trackball
trackerball (ˈtrækəˌbɔːl)
/ (ˈtrækˌbɔːl) /
noun
computing
a device consisting of a small ball, mounted in a cup, which can be rotated to move the cursor around the screen