Definition of "callback" [callback]

• The act or an instance of calling back from one location or situation to the previous one: a callback of laid-off auto workers. (noun)
• A return telephone or radio call. (noun)
• A recall of a recently sold product by the manufacturer to correct a defect. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Your callback will be used within the main form, so you must not include any tags or a form submit button. register_widget_control ($name, $callback [, $width [, $height]]);"
• "$callback - You assign the name of a JavaScript callback method to this parameter."
• "I think FilmDrunkard of the week must go to RoboPanda, for a series of gems, beginning with a Bruce Greenwood callback from the STRANGE WILDERNESS HAS A TRAILER thread: Did you know that:"