Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A ball mounted in a stationary housing and rotated to control a pointer on a computer screen.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A pointing device consisting of a ball housed in a socket

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an electronic device consisting of a rotatable ball in a housing; used to position the cursor and move images on a computer screen

Etymologies

track +‎ ball (Wiktionary)

Examples

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.