hook

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hook

1. a piece of material, usually metal, curved or bent and used to suspend, catch, hold, or pull something
2. short for fish-hook
3. 
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

Hook

 

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.

hook

[hu̇k]
(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.
(electronics)
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.
(geography)
The end of a spit of land that is turned toward shore. Also known as hooked spit; recurved spit.

hook

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.

HOOK

(1)
? Object Oriented Kernel. Delphia. An object-oriented extension of Delphia Prolog.

hook

(programming)
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.

hook

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.
References in periodicals archive ?
As in past studies of students more generally, we found that new students who hooked up had more sexually permissive attitudes (e.
Indeed, "tufted is definitely a much stronger category than hooked," but hooked rug sales continue to grow, said Ali Momeni, vice president of production and merchandising for Momeni, an importer.
Graves and Horodysky (2010) did not report hook-up percentage data for blue marlin and therefore it is unknown what hook-up rates would be for this aggressive feeder that is hooked upon strike.
Another current fashion in hooked rugs is the Provence look, as well as nature-inspired designs in general, such as garden themes and florals.
Although the company carries wool and cotton hand-hooked rugs, buyers' interest in traditional Chinese hooked accent rugs has tapered off, so the wholesaler is concentrating on its cotton collection, according to Karen Townsend, design director.
Influence of hook size and style on short-term survival of deeply hooked bluegills.
There are a lot of wonderful designs out there in hooked rugs -- and what is selling particularly well for us are micro-hook designs," said Alex Kimia, senior executive vice president of ABC Carpet & Home.
We've definitely intensified our focus on micro-hooked rugs, as well as an antique look in some of our hooked rugs," she said.
6 percent and 29 percent for deeply hooked or heavily bleeding fish.
Anglers will be able to keep only two fish, both longer than 24 inches, and cannot use sinkers or weights exceeding 4 pounds attached directly to the line unless the line is attached to a mechanical device that releases the weights automatically when a fish is hooked.
NEW YORK-In today's burgeoning area rug market, consumers are hooked on many types of rugs -- and especially on hand-hooked styles, which by all accounts are enjoying healthy sales in the marketplace.