extension

Noun
Synonyms: propagationextension serviceuniversity extensionfilename extensionfile name extensionreferencedenotationlengthinessprolongationtelephone extensionextension phoneelongation

WordNet 3.0

Noun (12)

  1. 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 regionsSynonyms: propagation
  4. an educational opportunity provided by colleges and universities to people who are not enrolled as regular studentsSynonyms: extension serviceuniversity extension
  5. act of stretching or straightening out a flexed limb
  6. a string of characters beginning with a period and followed by one or more 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”Synonyms: filename extensionfile 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”Synonyms: referencedenotation
  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”Synonyms: lengthinessprolongation
  10. an additional telephone set that is connected to the same telephone lineSynonyms: telephone extensionextension phone
  11. an addition to the length of somethingSynonyms: elongation
  12. an addition that extends a main buildingSynonyms: annexannexewing
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Webster's Dictionary (GCIDE)

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. [1913 Webster]

2.(Physics) That property of a body by which it occupies a portion of space. [1913 Webster]

3.(Logic & Metaph.) (a) Capacity of a concept or general term to include a greater or smaller number of objects; -- correlative of intension. (b) 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. [1913 Webster]

The law is that the intension of our knowledge is in the inverse ratio of its extension.— Sir W. Hamilton.[1913 Webster]
The extension of [the term] plant is greater than that of geranium, because it includes more objects.— Abp. Thomson.[1913 Webster]

4.(Surg.) The operation of stretching a broken bone so as to bring the fragments into the same straight line. [1913 Webster]

5.(Physiol.) The straightening of a limb, in distinction from flexion. [1913 Webster]

6.(Com.) A written engagement on the part of a creditor, allowing a debtor further time to pay a debt. [1913 Webster]

Counter extension. (Surg.) See under Counter.

Extension table, a table so constructed as to be readily extended or contracted in length. [1913 Webster]

Free On-line Dictionary of Computing

extension

1.<filename extension> filename extension.

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

(1997-06-21)

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