extension

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extension

1. Commerce a delay, esp one agreed by all parties, in the date originally set for payment of a debt or completion of a contract
2. the property of matter by which it occupies space; size
3. Med a steady pull applied to a fractured or dislocated arm or leg to restore it to its normal position
4. 
a. a service by which some of the facilities of an educational establishment, library, etc., are offered to outsiders
b. (as modifier): a university extension course
5. Logic
a. the class of entities to which a given word correctly applies: thus, the extension of satellite of Mars is the set containing only Deimos and Phobos
b. conservative extension a formal theory that includes among its theorems all the theorems of a given theory

Extension

 

in metalworking. (1) Hot deformation, in which the length of a billet is increased by decreasing the area of its cross section. Extension is performed on hammers and presses by successive pressings of the billet, with a rotation of 90° after each pressing.

(2) Cold sheet pressing, in which hollow components are made from sheets. Cold extension is used to make bushings, casings for instruments and apparatus, and cans and saucepans. The billet is usually cut from a sheet, with an allowance for diameter, and is pressed into the peripheral area of the matrix. Upon the subsequent movement of the puncheon, the middle, unpressed part of the billet is pressed into the opening in the matrix.

extension

[ik′sten·chən]
(mathematics)
extension fields
(physiology)
A movement which has the effect of straightening a limb.

extension

A wing or structure added to an existing building.

extension

(filename extension)

extension

(programming)
A feature or piece of code which extends a program's functionality, e.g. a plug-in.

extension

(1) See domain extension.

(2) A software add-on. For example, extensions add functionality to Firefox and Chrome Web browsers.

(3) Prior to Mac OS X, an executable module that enhanced the Mac operating system. The Windows counterpart is a "dynamic link library" (see DLL).

(4) Enhancements to Apple's iOS 8 and OS X Version 10.10 that enable apps to share functions in other apps. See "iOS 8" in iOS versions.

(5) A file type that is appended to the end of a file name. All executable programs in the Windows and Mac worlds use extensions: .EXE in Windows; .APP in Mac (see APP file). In the Unix/Linux environment, "executables" do not use an extension, but no matter which environment, "data" files have extensions. For example, a file with a .DOC or .DOCX extension is a Microsoft Word document. A file with a .JPG extension is a JPEG image.

Prior to Windows 95, extensions were limited to three characters. Starting with Windows 95, they can be very large (254-260 characters depending on Windows version); however, they are kept small in practice.

Common Extensions and Exhaustive Lists
In this encyclopedia, more than 500 common file extensions are listed under the terms "extension," followed by their first letter such as extension a, extension b and extension c. However, there are websites that catalog many more, including the most obscure; for example, visit www.filext.com. See Win Show file extensions, dangerous extensions and graphics formats. See also domain extension.
References in periodicals archive ?
The functionality of the program extension was tested by the creation of sample maps.
COTABATO CITY -- The Department of Agrarian Reform in the Autonomous Region in Muslim Mindanao (DAR-ARMM) is working on the distribution of 112, 290 hectares of landholdings covered by the Comprehensive Agrarian Reform Program Extension with Reforms (CARPER) in the region to qualified farmers starting this year.
Monthly pricing for the Affiliate Program Extension is considerably lower than other affiliate program solutions.
With President Obama signing a 60-day National Flood Insurance Program extension bill late yesterday afternoon, a lapse in the program has been avoided, but industry officials are wasting no time looking to the next phase and calling on the Senate to act on a five-year extension.
P&G's alignment with the NFL PLAY 60 Super School program is to establish a unique program extension, finding the ultimate P&G Super Parent.
9700, or the Comprehensive Agrarian Reform Program Extension with Reform (Carper), says nonpayment of amortization for three years would forfeit the awarding of the land.
It was extended for another five years in June 2009 through Republic Act 9700 or the Comprehensive Agrarian Reform Program Extension with Reform or CARPer.
Industry officials believe the House will accept the 60-day National Flood Insurance Program extension the Senate passed yesterday, but an ultimatum in that bill could give the House pause.
The program extension is consistent with Governor Christie's focus on bolstering economic growth in New Jersey.
Initiated through the Carper law (Comprehensive Agrarian Reform Program Extension with Reforms), the program is also intended to cater to new ARBs whose respective organizations are not yet eligible under the existing regular lending programs of the Landbank.
It was extended for another five years in June, 2009, through Republic Act 9700 or the Comprehensive Agrarian Reform Program Extension with Reform or CARPer.
today introduced a five-year National Flood Insurance Program extension in the form of an amendment to bipartisan drug legislation.

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