track·ball (tr k bôl )n. A ball mounted in a stationary housing and rotated to control a pointer on a computer screen. |
trackball [ˈtrækˌbɔːl], trackerball [ˈtrækəˌbɔːl]
n
(Electronics & Computer Science / Computer Science) Computing a device consisting of a small ball, mounted in a cup, which can be rotated to move the cursor around the screen
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  trackball - an electronic device consisting of a rotatable ball in a housing; used to position the cursor and move images on a computer screen; "a trackball is essentially an upside-down mouse"electronic device - a device that accomplishes its purpose electronically |
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