extension

(redirected from Extention)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.
Related to Extention: chrome

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 Victorian building is now joined to the two storey extention which sympathetically mixes old and modern styles.
He sees an extention of these diagrams as a potential visual programming language.
02 Contract Notice (below OJEU threshold): Alteration and Extention to Beetroot Recording Studio, Varnsdorf Way, Airdrie.
The Planing Wing of the authority had completed the all codal formalities of extention from 25 acres to 80 acres.
According to details the Neelum-Jhelum hydropower project of 969MW, the 4th extention project of Tarbela of 1,410MW and Golen Gol hydropower project of over 100MW would be operational next year.
M2 EQUITYBITES-December 22, 2011--Saab AB gets SEK126m extention of Carl-Gustaf ammunition order(C)2011 M2 COMMUNICATIONS http://www.
NORDIC BUSINESS REPORT-November 22, 2011--Deep Sea Supply is pleased with contract extention from UK Enquest - CEO(C)2011 M2 COMMUNICATIONS http://www.
Djiashi added ;" in case of extention to the US troops , the Ahrar bloc would withdraw from the government since it can not work with a flimsy Government lack of sovereignty, he said.
The former Cronulla Shark, who recently signed a two-year extention to stay at Bradford until 2013, played a County Origin game in the 2007 NRL season and was on his way to becoming a star Down Under.
Anyone with information is asked to contact DC Steve Tarver on 0345 113 5000 extention 7921 6725 or the Crimestoppers on 0800 555111.
Instead, Royal Mail is continuing to make cuts in workforce, extention of routes on deliveries which are severly destroying the service, which is all people want, their post on time.
Update and improvement of existing anti-harassment provisions of the Clinton Special District and extention of Hudson Yards anti-harassment provisions to the area of the Garment District between Eighth and Ninth Avenues.