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1. a piece of material, usually metal, curved or bent and used to suspend, catch, hold, or pull something
2. short for fish-hook
a. a sharp bend or angle in a geological formation, esp a river
b. a sharply curved spit of land
4. Boxing a short swinging blow delivered from the side with the elbow bent
5. Cricket a shot in which the ball is hit square on the leg side with the bat held horizontally
6. Golf a shot that causes the ball to swerve sharply from right to left
7. Surfing the top of a breaking wave
8. Ice hockey the act of hooking an opposing player
9. Music a stroke added to the stem of a written or printed note to indicate time values shorter than a crotchet
10. another name for a sickle
11. a nautical word for anchor
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



in machine building, a part of load-lifting machines that suspends loads or lifting attachments on the cables or chains of hoisting mechanisms (load hook); a part of transport machines that transmits tractive forces (coupling hook, draw hook), as between a tractor and trailer. Hooks are made as single hooks or double (sister) hooks. Load hooks made of cast or unit-forged steel have load-lifting capacities of up to 75 tons; laminated load hooks made of drop-forged steel plates have load-lifting capaci-ties of more than 75 tons. Coupling hooks are usually forged or cast single hooks. The main characteristics of hooks are standardized.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


(computer science)
A modification of a computer program to add instructions to an existing part of the program.
(design engineering)
A piece of hard material, especially metal, formed into a curve for catching, holding, or pulling something.
A circuit phenomenon occurring in four-zone transistors, wherein hole or electron conduction can occur in opposite directions to produce voltage drops that encourage other types of conduction.
The end of a spit of land that is turned toward shore. Also known as hooked spit; recurved spit.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


hood, 1
1. A curved or bent metal device used for attachment.
2. A bend in the end of a reinforcing bar; also see hooked bar.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


? Object Oriented Kernel. Delphia. An object-oriented extension of Delphia Prolog.


A software or hardware feature included in order to simplify later additions or changes by a user.

For example, a simple program that prints numbers might always print them in base 10, but a more flexible version would let a variable determine what base to use; setting the variable to 5 would make the program print numbers in base 5. The variable is a simple hook. An even more flexible program might examine the variable and treat a value of 16 or less as the base to use, but treat any other number as the address of a user-supplied routine for printing a number. This is a hairy but powerful hook; one can then write a routine to print numbers as Roman numerals, say, or as Hebrew characters, and plug it into the program through the hook.

Often the difference between a good program and a superb one is that the latter has useful hooks in judiciously chosen places. Both may do the original job about equally well, but the one with the hooks is much more flexible for future expansion of capabilities.

Emacs, for example, is *all* hooks.

The term "user exit" is synonymous but much more formal and less hackish.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)


In programming, instructions that provide breakpoints for future expansion. Hooks may be changed to call some outside routine or function or may be places where additional processing is added. See also switch hook.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
In New York, for example, lawyers, physicians, clergymen, dentists, pharmacists, optometrists, psychologists, podiatrists, nurses, Christian Scientists, embalmers, firemen, and sole business proprietors are all let off the hook. The result is that many of the best possible jurors are being left off panels.
Off The Hook's previous placed effort at Haydock behind Queenofhearts reads well following that mare's subsequent Sandown win.
Dugdale, in Edinburgh yesterday, said: "The thing that bothers is not so much the petty exchanges, but the fact David Cameron is getting off the hook all through the summer.
Martyn Williams, a campaigner for Friends of the Earth, said: "They have a tendency to focus on what people can do and they do, to some extent, let the Government off the hook."
And although he promoted Downtown as a "very major place to live," Swig added that sometimes residential conversions should be averted because, surprisingly, commercial brokers will ring your phone off the hook. Swig cited Swig Burris's purchase of 48 Wall St., a 34-story, 320,000 s/f building as an example.
Gordon Ross, snubbed by Scotland in midweek, missed three penalties as Leeds allowed London Irish off the hook at Headingley.
It lets them off the hook. Senior governments actually wait for private-sector leadership instead of doing their jobs.
When parents thought this way, kids realized pretty quickly that they were basically off the hook and would act accordingly.
The Daily News later retracted the story, saying "a spokeswoman for the Delaware Department of Justice said it misinterpreted the law and that Brady was not obligated to state that the gun was for her son as long as he was legally qualified to own a firearm." So, is the Delaware DOJ bending the law to allow a politically connected celebrity activist off the hook, or is the law so confusing that the DOJ lawyers can't properly interpret what they expect gun-owning citizens to know and obey?
At press time, as the Super Bowl was approaching, the phone at Sister Jean Kenny's convent was once again ringing off the hook. The 52-year-old Chicagoan, a Sister of Providence, was getting her annual rush of calls from national and local media trying to book her on TV and radio news, talk, and sports shows to predict the winner of the Super Bowl.
But you should not have let Campo Baeza off the hook so easily, and waited until you could obtain pictures of the house in use.
Yet, she does not let blacks off the hook either, and her words are not always comforting.