extension

(redirected from nail extension)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.

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 ?
Head therapist Fiona Young says: "When we were thinking of bringing nail extensions into the salon, we wanted a product which was 100 per cent good for your nails.
Unfortunately, there is no patch test developed yet to check for an allergy to nail extension products.
Cherry Hill, NJ, has patented a method of preparing colored ultraviolet (UV)-curable compositions useful for adornment of natural and artificial nails and artificial nail extensions.
A boom in gel and acrylic nail extensions meant women spent PS450 on their hands, more than on their hair, according to new research.
This salon focuses on haircuts, coloring, manicures & pedicures, nail extensions, perms/weaving, facials and body scrubs.
Waxing, pedicures, manicures, nail extensions, eye lash and brow treatments, hair and makeup, massage, spa treatments, wedding pamper package and gift vouchers available.
NAIL technicians apply nail extensions and decorate them.
Michelle sends her for nail extensions and a fake tan treatment ahead of a big night out to Cardiff Bay in a stretch limo with Levi's friends.
Perhaps we need to allow girls to have a childhood which doesn't expect them to be made-up, have nail extensions, hair colouring and crop tops.
Treatments available include holistic therapies, nail treatments including manicures, nail extensions and much more.
Adele's new figure fits neatly with character Kelly's make-over - she now looks like she would be more at home in Footballer's Wives, arriving back in Emmerdale in a souped-up sports car, with hair extensions, a St Tropez tan and nail extensions Coleen McLoughlin would die for.
Among services on offer are nail extensions, facials, sun beds, waxing, red vein removal, false tanning, Indian head massage and reflexology.