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Longman Dictionary of Contemporary English
extension
noun
COLLOCATIONS FROM OTHER ENTRIES
extension lead
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
further
▪ South Cave school was opened in 1967, further extensions including a sports hall were completed in 1978.
▪ But the new function as a syllabic symbol received a further extension.
▪ In this case a possible further extension beyond the horizon would present no problems.
▪ After every second teaching unit there is further revision and extension.
▪ There were further extensions of Soviet influence during the 1970s and 1980s.
▪ Between 1818 and 1821, the mill's large southern extension was built, with further extensions completed prior to 1827.
▪ The two opposition members of parliament were firmly opposed to what they saw as a further extension of government power.
▪ There will always be some further extension or growth of democracy to be undertaken.
logical
▪ He was, rather, a natural driver, for whom the wheel seemed a logical extension of his hands.
▪ Although dangerous, then, as a doctrine in practice, the admission of nodding is a logical extension of principle.
▪ So while wireless data services may be fairly new, they appear to be logical extensions to existing and trusted services.
▪ Thus team appraisal is a logical extension of the individual appraisal Interview.
▪ One need not be a Nobel Prize economist to divine the logical extension of that trend.
▪ Family history and the history of the local community offer logical extensions of this process.
▪ So much modern merchandise is themed with bestselling books that it makes a logical extension to the stock profile.
natural
▪ Cloning cattle of proven performance seems the natural extension of these techniques.
▪ What a natural extension it would be to take Brady to visit historical sites related to those dolls and their historical eras!
▪ These companies had traditional links with the railways and their raisond'être had been that they were a natural extension of the business.
▪ Automated sample-return missions are a natural extension of this category.
▪ A natural extension of the two approaches is to combine them and test both predictions at the same time.
▪ It seemed a natural extension of his arm.
▪ A bog garden is a natural extension of a pool in which moisture loving plants can be grown.
▪ To Richard Gough local history seemed a natural extension of family history.
new
▪ The Library's collection of about 250,000 cuttings will be moved into a purpose-built room within the new extension.
▪ However, research teams are so pleased with the results of science experiments that they asked managers for a new two-day extension.
▪ They dug it up when they was making the trench for the pipes to the new vehicle examination extension.
▪ But with the two new extensions built we were able to work more comfortably with carpeted classrooms.
▪ I found the wretched machine later, in the new extension.
▪ Both institutions claim to be under severe strain - although both are also busy planning new extensions.
▪ The new extension at Lyles will be built in the gap between the two existing factory units.
possible
▪ Local consultation on the road which would be dual carriageway, with a possible extension is due to end next week.
▪ In this case a possible further extension beyond the horizon would present no problems.
▪ They have further suggested two possible extensions which will be described in the next section.
▪ This concession will be granted for an initial period of five years with possible extension after that.
▪ This route has been earmarked for a possible future extension of the Midland Metro light rail transit system.
▪ In addition, he has suggested some possible extensions for the non-unique region beyond the horizon including one that is time symmetric.
▪ In addition, on some manors, the liberal application of marl made possible an extension of the area under wheat.
■ NOUN
contract
▪ Schilling signed a $ 15. 45 million, three-year contract extension with the Philadelphia Phillies in April.
▪ Michigan's contract extension would have been worth between $ 22 million and $ 26 million over six years, sources said.
▪ Paup had wanted to sign a contract extension with Green Bay during the 1994 season, but the Packers never approached him.
▪ He and Jeff Bagwell have contract extensions that likely mean they will end their careers with the Astros.
▪ Miami is offering a big contract extension to keep him from leaving campus.
▪ The contract extensions of the 1997 flood employees would be a good place to start.
▪ The contract extension really is two decisions in one.
lead
▪ The pictures are gone off the walls-a kettle on a long extension lead is on the bare table behind.
▪ I bought an extension lead for the aerial point.
▪ The socket of course was out of reach, but again the case provided an extension lead.
▪ You ask for an extension lead.
▪ Connection to the electricity supply should be via a weatherproof cable connector to the extension lead.
▪ A very short length of cable is supplied with the machine, and this proved annoying unless an extension lead was used.
■ VERB
add
▪ They added extensions, steam power and large loom sheds.
build
▪ He has promised that he will build an extension if given money.
▪ Otherwise they may be confronted with a partially built, inoperable extension and serious deterioration in the existing service.
▪ Second, it can't support applications such as Video for Windows that build their own extensions to the Windows application binary interface.
▪ They hope to demolish the store and build a bar extension, behind the main stand, in its place.
▪ After six months we decided to build a 12×12' study extension.
▪ Between 1818 and 1821, the mill's large southern extension was built, with further extensions completed prior to 1827.
▪ If you build an extension, a soakaway will often be required.
include
▪ Enhancements to the new release enhancements include Posix 1003.4 real-time extensions, which enable users to execute Ada code in Unix environments.
▪ Despite complete protection, including the extension of predator control beyond the boundaries of their reservation, the heath hens never recovered.
▪ It includes an extension of the no-go areas around Shetland.
▪ Future developments include a multi-media extension called Mime.
▪ Other measures can include chicanes, pavement extensions and road narrowings.
provide
▪ This provides an analytic extension beyond the Cauchy horizon which is another part of Kerr space-time.
▪ The socket of course was out of reach, but again the case provided an extension lead.
▪ We had asked for the additional cost of providing an extension of the present service to the Cuiken area of Penicuik.
▪ They can provide extension services for farmers and invest in industries to process agricultural products.
EXAMPLES FROM OTHER ENTRIES
▪ "I've been having some problems getting extension," Clark said about his elbow.
▪ an extension course
▪ Hello, I'd like extension 2807, please.
▪ Professor Lohman gave me a one-week extension on my paper.
▪ the extension of credit to newer customers
▪ The city is building an extension to the subway line.
▪ You'll find the Picasso collection in the extension to the museum.
EXAMPLES FROM CORPUS
▪ A parser is an extension of a recogniser which assigns grammatical structure to the input.
▪ It is just an extension of on-the-road campaigning.
▪ Some 24, 000 more tickets will be made available by phone or in person for the three-day extension.
▪ The extension to Inch Abbey has been approved completely but only part of the Ballyduggan extension has received approval.
▪ The system will also support message passing models such as parallel virtual machine and the high performance Fortran extensions of Fortran 90.
▪ The twelve sales units in the London office were merely extensions of the New York parent operations.
▪ Two of the 16-bit slots have local bus extensions.
The Collaborative International Dictionary
Extension

Extension \Ex*ten"sion\, n. [L. extensio: cf. F. extension. See Extend, v. t.]

  1. The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion.

  2. (Physics) That property of a body by which it occupies a portion of space.

  3. (Logic & Metaph.)

    1. Capacity of a concept or general term to include a greater or smaller number of objects; -- correlative of intension.

    2. the class or set of objects to which a term refers; -- contrasted with intension, the logical specification which defines members of a class, being the set of attributes which are necessary and sufficient to recognize an object as a member of the class.

      The law is that the intension of our knowledge is in the inverse ratio of its extension.
      --Sir W. Hamilton.

      The extension of [the term] plant is greater than that of geranium, because it includes more objects.
      --Abp. Thomson.

  4. (Surg.) The operation of stretching a broken bone so as to bring the fragments into the same straight line.

  5. (Physiol.) The straightening of a limb, in distinction from flexion.

  6. (Com.) A written engagement on the part of a creditor, allowing a debtor further time to pay a debt.

    Counter extension. (Surg.) See under Counter.

    Extension table, a table so constructed as to be readily extended or contracted in length.

Douglas Harper's Etymology Dictionary
extension

c.1400, "swelling, bulging," from Latin extensionem/extentionem (nominative extensio/extentio) "a stretching out, extension," noun of action from past participle stem of extendere (see extend). In a concrete sense, "extended portion of something" (a railroad, etc.), from 1852. Telephone sense is from 1906.\n

Wiktionary
extension

n. 1 The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion. 2 That property of a body by which it occupies a portion of space (or time, e.g. "spatiotemporal extension") 3 (context semantics English) Capacity of a concept or general term to include a greater or smaller number of objects; — correlative of intension.

WordNet
extension
  1. n. a mutually agreed delay in the date set for the completion of a job or payment of a debt; "they applied for an extension of the loan"

  2. act of expanding in scope; making more widely available; "extension of the program to all in need"

  3. the spreading of something (a belief or practice) into new regions [syn: propagation]

  4. an educational opportunity provided by colleges and universities to people who not enrolled as regular students [syn: extension service, university extension]

  5. act of stretching or straightening out a flexed limb [ant: flexion]

  6. a string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename; "most applications provide extensions for the files they create"; "most BASIC files use the filename extension .BAS" [syn: filename extension, file name extension]

  7. the most direct or specific meaning of a word or expression; the class of objects that an expression refers to; "the extension of `satellite of Mars' is the set containing only Demos and Phobos" [syn: reference, denotation]

  8. the ability to raise the working leg high in the air; "the dancer was praised for her uncanny extension"; "good extension comes from a combination of training and native ability"

  9. amount or degree or range to which something extends; "the wire has an extension of 50 feet" [syn: lengthiness, prolongation]

  10. an additional telephone set that is connected to the same telephone line [syn: telephone extension, extension phone]

  11. an addition to the length of something [syn: elongation]

  12. an addition that extends a main building [syn: annex, annexe, wing]

Wikipedia
Extension

Extension, extend or extended may refer to:

Extension (music)

In music, an extension is a set of musical notes that lie outside the standard range or tessitura.

Extension (George Braith album)

Extension is the third album by American saxophonist George Braith recorded in 1964 and released on the Blue Note label.

Extension (Clare Fischer album)

Extension is the third album by composer/arranger/keyboardist Clare Fischer, and his first for big band, recorded and released in 1963 on the Pacific Jazz label, reissued on CD (together with the 1967 LP, Songs for Rainy Day Lovers) in 2002 as America the Beautiful, and, under its original name, in 2012.

Extension (metaphysics)

In metaphysics, extension is, roughly speaking, the property of "taking up space". René Descartes defines extension as the property of existing in more than one dimension. For Descartes, the primary characteristic of matter is extension, just as the primary characteristic of mind is consciousness. This can be contrasted with , where the Planck length, an almost unimaginably tiny quantity, represents reaching that distance scale where, it has been theorized, all measurement seemingly breaks down to that which can be subsumed at this scale, as distance only, or extension.

John Locke, in An Essay Concerning Human Understanding, defined extension as "only the Space that lies between the Extremities of those solid coherent Parts" of a body. It is the space possessed by a body. Locke refers to the extension in conjunction with solidity and impenetrability, the other primary characteristics of matter.

Extension also plays an important part in the philosophy of Baruch Spinoza, who says that substance (that which has extension) can be limited only by substance of the same sort, i.e. matter cannot be limited by ideas and vice versa. From this principle, he determines that substance is infinite. This infinite substance is what Spinoza calls God, or better yet nature, and it possesses both unlimited extension and unlimited consciousness.

The property of extension has not played a significant role in philosophy roughly since the time of Immanuel Kant. Kant maintained a distinction between the mind and the body, differentiating space as the realm of the body and time the realm of the mind. He makes only cursory mention of "extension," however, and no philosophers have dealt extensively with the topic since Kant's writing.

Extension (semantics)

In any of several studies that treat the use of signs — for example, in linguistics, logic, mathematics, semantics, and semiotics — the extension of a concept, idea, or sign consists of the things to which it applies, in contrast with its comprehension or intension, which consists very roughly of the ideas, properties, or corresponding signs that are implied or suggested by the concept in question.

In philosophical semantics or the philosophy of language, the 'extension' of a concept or expression is the set of things it extends to, or applies to, if it is the sort of concept or expression that a single object by itself can satisfy. Concepts and expressions of this sort are monadic or "one-place" concepts and expressions.

So the extension of the word "dog" is the set of all (past, present and future) dogs in the world: the set includes Fido, Rover, Lassie, Rex, and so on. The extension of the phrase "Wikipedia reader" includes each person who has ever read Wikipedia, including you.

The extension of a whole statement, as opposed to a word or phrase, is defined (since Frege 1892) as its truth value. So the extension of "Lassie is famous" is the logical value 'true', since Lassie is famous.

Some concepts and expressions are such that they don't apply to objects individually, but rather serve to relate objects to objects. For example, the words "before" and "after" do not apply to objects individually — it makes no sense to say "Jim is before" or "Jim is after" — but to one thing in relation to another, as in "The wedding is before the reception" and "The reception is after the wedding". Such "relational" or "polyadic" ("many-place") concepts and expressions have, for their extension, the set of all sequences of objects that satisfy the concept or expression in question. So the extension of "before" is the set of all (ordered) pairs of objects such that the first one is before the second one.

Extension (Mac OS)

On the Apple Macintosh operating system prior to OS X, extensions were small pieces of code that extended the system's functionality. They were run initially at start-up time, and operated by a variety of mechanisms, including trap patching and other code modifying techniques. Initially an Apple developer hack, extensions became the standard way to provide a modular operating system. Large amounts of important system services such as the TCP/IP network stacks (MacTCP and Open Transport) and USB and FireWire support were optional components implemented as extensions. The phrase "system extension" later came to encompass faceless background applications as well.

Extensions generally filled the same role as DOS's terminate and stay resident programs, or Unix's daemons, although by patching the underlying OS code, they had the capability to modify existing OS behaviour the other two did not.

Extension (predicate logic)

The extension of a predicatea truth-valued functionis the set of tuples of values that, used as arguments, satisfy the predicate. Such a set of tuples is a relation.

For example the statement "d2 is the weekday following d1" can be seen as a truth function associating to each tuple (d2, d1) the value true or false. The extension of this truth function is, by convention, the set of all such tuples associated with the value true, i.e.

{(Monday, Sunday),
(Tuesday, Monday),
(Wednesday, Tuesday),
(Thursday, Wednesday),
(Friday, Thursday),
(Saturday, Friday),
(Sunday, Saturday)}

By examining this extension we can conclude that "Tuesday is the weekday following Saturday" (for example) is false.

Using set-builder notation, the extension of the n-ary predicate Φ can be written as


{(x, ..., x) ∣ Φ(x, ..., x)} .

Extension (telephone)

In residential telephony, an extension telephone is an additional telephone wired to the same telephone line as another. In middle 20th century telephone jargon, the first telephone on a line was a "Main Station" and subsequent ones "Extensions". Such extension phones allow making or receiving calls in different rooms, for example in a home, but any incoming call would ring all extensions and any one extension being in use would cause the line to be busy for all users. Some telephones intended for use as extensions have built in intercom features; a key telephone system for a small business may offer two to five lines, lamps indicating lines already in use, the ability to place calls on ' hold' and an intercom on each of the multiple extensions.

In business telephony, a telephone extension may refer to a phone on an internal telephone line attached to a private branch exchange (PBX) or Centrex system. The PBX operates much as a community switchboard does for a geographic telephone numbering plan and allows multiple lines inside the office to connect without each phone requiring a separate outside line. In these systems, one usually has to dial a number (typically 9 in North America, 0 in Europe) to tell the PBX to connect with an outside landline (also called DDCO, or Direct Dial Central Office) to dial an external number. Within the PBX, the user merely dials the extension number to reach any other user directly. For inbound calls, a switchboard operator or automated attendant may request the number of the desired extension or the call may be completed with direct inbound dialing if outside numbers are assigned to individual extensions.

An off-premises extension, where a worker at a remote location employs a telephone configured to appear as if it were an extension located at the main business site, may be created in analog telephony by using a leased line to connect the extension to the main enterprise system. Voice over IP makes the creation of off-premises extensions inexpensive and trivial as broadband Internet and virtual private networking can extend local network access anywhere in the world. In either system, an off-premises extension is reachable from within the same enterprise simply by calling its extension number directly; for inbound and outgoing calls, it functions as if it were located at the main place of business.

Usage examples of "extension".

In a way, the adjective following the noun is treated as an extension of the noun proper, and so the case ending is added at the end of the whole phrase.

They were on the same level now as the first of the two upper flights, which he could see were the new Fokkers, with aileron extensions and the extra lifting surface between the wheels.

I just finished up years of working on an Amicus Brief for the Supreme Court in the hope of overturning the latest copyright extensions.

It now appears that the unheard-of currents, amounting to millions of amperes, which flowed momentarily in the windings of our generator must have produced a certain extension into four dimensions, for a fraction of a second and in a 7volume large enough to contain a man.

Alex followed the arthritic old man down the short corridor and through a narrow door into a small office that was a miniature extension of the expensive outer design.

Act is timeless, so there is no reason why Motion also should not primarily be timeless, time attaching to it only in so far as it happens to have such and such an extension.

No argument for the divine authority of Christianity has been urged with greater force, or traced with higher eloquence, than that deduced from its primary development, explicable on no other hypothesis than a heavenly origin, and from its rapid extension through great part of the Roman empire.

Taking his time, he installed the Camcorder on its tripod and arranged the photoflood lights which he plugged into an extension cable.

There is not only a significance of the discerned events embracing the whole present duration, but there is a significance of a cogredient event involving its extension through a whole time-system backwards and forwards.

There was a crash, three stories below, as the dacoit hit the roof of an extension behind the apartment building.

But if they have that faculty, the same dualism between thought and extension must also apply to them.

Clay would have been to prevent the extension of slavery, could the act of electing have been evil?

The complaint of discontented people in the Southern States was that there had been too great an expansion of popular rights, too large an extension of the elective franchise.

The attributes of God are laws, his modes of action are the essentialities of his being, the same in all the worlds of boundless extension and all the ages of endless duration.

In every proposed extension of the powers of Congress, that State has expressly and watchfully excepted that of meddling with the importation of negroes.