trackball
[
trak
-bawl]
/ˈtrækˌbɔl/
noun
1.
a computer input device for controlling the pointer on a display screen by rotating a ball set inside a case.
Origin
1975-1980
Examples from the web for
trackball
Manufacturers introduced the
trackball
, based on the same technology, as an alternative to the mouse on laptop computers.
Dorothy is controlled entirely with the touchscreen, which has a virtual emerald
trackball
on it.
The pointing device is a
trackball
that does not fit on the keyboard platform.
The keyboard and
trackball
shall allow for either left or right handed use.
Visitors use a
trackball
to scroll across the screen which describes the sanctuary's features as they go.
Device that moves the onscreen pointer by spinning a rubber
trackball
.
British Dictionary definitions for
trackball
trackball
/
ˈtrækˌbɔːl
/
noun
1.
(
computing
) a device consisting of a small ball, mounted in a cup, which can be rotated to move the cursor around the screen