What is another word for trackball?
Pronunciation: [tɹˈakbɔːl] (IPA) 
A trackball is a pointing device that is similar to a mouse but operates differently. It is a small, handheld device that contains a ball that can be moved around with a thumb or finger to control the movement of the cursor on a computer screen. Some synonyms for a trackball include a rolling ball mouse, finger-operated mouse, and thumb-operated mouse. Other terms include a scroll ball, rolling ball trackball, or simply a ball mouse. These different synonyms all refer to a similar pointing device that is commonly used by people who need a more precise and ergonomic alternative to traditional computer mice.
