Breadcrumb Home > Dictionary > Index T Cite trackball: Meaning and Definition of Find definitions for: track•ball Pronunciation: (trak'bôl"), [key] a computer input device for controlling the pointer on a display screen by rotating a ball set inside a case. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trackball (Thesaurus) track and field track brake TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News The Holocaust (1933–1945) Chinese New Year History, Meaning, and Celebrations Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 Inaugural Trivia Related Content Daily Word Quiz: subrosa Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language