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callback

 - 8 dictionary results

call⋅back

[kawl-bak]
–noun
1. an act of calling back.
2. a summoning of workers back to work after a layoff.
3. a summoning of an employee back to work after working hours, as for emergency business.
4. a request to a performer who has auditioned for a role, booking, or the like to return for another audition.
5. recall (def. 12).
6. a return telephone call.
–adjective
7. of or pertaining to such a call: Please leave a callback number.
Also, call-back.


Origin:
1925–30; n. use of v. phrase call back

re⋅call

[v. ri-kawl; n. ri-kawl, ree-kawl for 7–9, 12, 13; ree-kawl for 10, 11]
–verb (used with object)
1. to bring back from memory; recollect; remember: Can you recall what she said?
2. to call back; summon to return: The army recalled many veterans.
3. to bring (one's thoughts, attention, etc.) back to matters previously considered: He recalled his mind from pleasant daydreams to the dull task at hand.
4. International Law. to summon back and withdraw the office from (a diplomat).
5. to revoke or withdraw: to recall a promise.
6. to revive.
–noun
7. an act of recalling.
8. recollection; remembrance.
9. the act or possibility of revoking something.
10. the removal or the right of removal of a public official from office by a vote of the people taken upon petition of a specified number of the qualified electors.
11. Also called callback. a summons by a manufacturer or other agency for the return of goods or a product already shipped to market or sold to consumers but discovered to be defective, contaminated, unsafe, or the like.
12. a signal made by a vessel to recall one of its boats.
13. a signal displayed to direct a racing yacht to sail across the starting line again.

Origin:
1575–85; re- + call


re⋅call⋅a⋅ble, adjective


1. See remember. 5. rescind, retract, recant, repeal; annul. 7. memory. 9. revocation, retraction, repeal, withdrawal, recantation; nullification.


1. forget.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To callback
call·back   (kôl'bāk')   
n.  
  1. The act or an instance of calling back from one location or situation to the previous one: a callback of laid-off auto workers.

  2. A return telephone or radio call.

  3. A recall of a recently sold product by the manufacturer to correct a defect.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

recall  (v.)
1582, "to bring back by calling upon," from re- "back, again" + call (q.v.); in some cases a loan-translation of M.Fr. rappeler (see repeal) or L. revocare (see revoke). Sense of "bring back to memory" is from 1611. U.S. political sense of "removal of an elected official" is recorded from 1902. The noun is first recorded 1611.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: re·call
Pronunciation: ri-'kol, 'rE-"
Function: noun
: remembrance of what has been previously learned or experienced —re·call /ri-'kol/ transitive verb
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

recall re·call (rĭ-kôl')
v. re·called, re·call·ing, re·calls
To remember; recollect. n. (rē'kôl')
The ability to remember information or experiences.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Computing Dictionary

callback
1. A scheme used in event-driven programs where the program registers a subroutine (a "callback handler") to handle a certain event. The program does not call the handler directly but when the event occurs, the run-time system calls the handler, usually passing it arguments to describe the event.
2. A user authentication scheme used by some computers running dial-up services. The user dials in to the computer and gives his user name and password. The computer then hangs up the connection and uses an auto-dial modem to call back to the user's registered telephone number. Thus, if an unauthorised person discovers a user's password, the callback will go, not to him, but to the owner of that login who will then know that his account is under attack.
However, some PABXs can be fooled into thinking that the caller has hung up by sending them a dial tone. When the computer tries to call out on the same line it is not actually dialing through to the authorised user but is still connected to the original caller.
3. cost control callback.
(2003-07-13)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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