Definition of Extension

1. Noun. 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"

Generic synonyms: Delay, Hold, Postponement, Time Lag, Wait

2. Noun. Act of expanding in scope; making more widely available. "Extension of the program to all in need"
Generic synonyms: Enlargement, Expansion
Specialized synonyms: Spread, Spreading, Stretch
Derivative terms: Extend

3. Noun. The spreading of something (a belief or practice) into new regions.
Exact synonyms: Propagation
Generic synonyms: Airing, Dissemination, Public Exposure, Spreading
Derivative terms: Propagate, Propagate

4. Noun. An educational opportunity provided by colleges and universities to people who are not enrolled as regular students.

5. Noun. Act of stretching or straightening out a flexed limb.
Generic synonyms: Stretching
Specialized synonyms: Hyperextension
Derivative terms: Extend
Antonyms: Flexion

6. Noun. 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 BASIC files use the filename extension .BAS"

7. Noun. 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"
Exact synonyms: Denotation, Reference
Generic synonyms: Meaning, Substance
Derivative terms: Denote, Extensional, Refer, Refer, Referent

8. Noun. The ability to raise the working leg high in the air. "Good extension comes from a combination of training and native ability"
Generic synonyms: Property, Dance

9. Noun. Amount or degree or range to which something extends. "The wire has an extension of 50 feet"
Exact synonyms: Lengthiness, Prolongation
Generic synonyms: Longness
Specialized synonyms: Coextension
Derivative terms: Prolong

10. Noun. An additional telephone set that is connected to the same telephone line.

11. Noun. An addition to the length of something.
Exact synonyms: Elongation
Generic synonyms: Add-on, Addition, Improver
Derivative terms: Elongate

12. Noun. An addition that extends a main building.
Exact synonyms: Annex, Annexe, Wing
Generic synonyms: Add-on, Addition, Improver
Group relationships: Building, Edifice
Specialized synonyms: Ell
Derivative terms: Annex

Definition of Extension

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

Definition of Extension

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

2. Noun. That property of a body by which it occupies a portion of space (or time, e.g. "spatiotemporal extension") ¹

3. Noun. (semantics) Capacity of a concept or general term to include a greater or smaller number of objects; — correlative of intension. ¹

4. Noun. (banking finance) A written engagement on the part of a creditor, allowing a debtor further time to pay a debt. ¹

5. Noun. (medicine) The operation of stretching a broken bone so as to bring the fragments into the same straight line. ¹

6. Noun. (weightlifting) An exercise in which an arm or leg is straightened against resistance. ¹

7. Noun. (fencing) A simple offensive action, consisting of extending the weapon arm forward. ¹

8. Noun. (telecommunication) A numerical code used to specify a specific telephone in a telecommunication network. ¹

9. Noun. (computing) A file extension. ¹

¹ Source:

Definition of Extension

1. [n -S]

Medical Definition of Extension

1. 1. The movement by which the two elements of any jointed part are drawn away from each other. 2. A movement which brings the members of a limb into or toward a straight relation. Origin: L. Extensio This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Extension

extension (current term)
extension agent
extension block
extension bridge
extension cable
extension cables
extension cord
extension course
extension form
extension ladder
extension phone
extension service
extensional definition

Literary usage of Extension

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Catholic Encyclopedia: An International Work of Reference on the by Charles George Herbermann (1913)
"Continuous extension may be described as that property in virtue whereof the parts into which material substance is divisible are ..."

2. An Essay Concerning Human Understanding by John Locke (1805)
"Every part of duration is duration too ; and every part of extension is extension, both of them capable of addition or division •*» infi- nitum. ..."

3. Library Journal by American Library Association, Library Association, Richard Rogers Bowker, Charles Ammi Cutter (1907)
"In myriad ways not dreamed of at its inception, library extension has ... The immediate concern of those engaged in library extension must be with the ..."

4. Bulletin by United States (1918)
"This extension work consists of practical demonstrations, ... This extension work is not a systematic course of instruction but deals with problems of ..."

5. The Philosophical Review by Sage School of Philosophy, Cunningham, Gustavus Watts, 1881-, James Edwin Creighton, Frank Thilly, Jacob Gould Schurman (1897)
"In his more detailed discussion of extension, Leibniz seems in fact to treat ... For, in the first place, he often calls extension phenomenal or phenomenon. ..."

6. The American Naturalist by American Society of Naturalists, Essex Institute (1871)
"MECHANISM OF FLEXION AND extension IN BIRDS' WINGS.—BY Du. ELLIOTT COUES. DK. COUES' proposition is, that flexion of the forearm upon the ..."

7. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1894)
"As regards the order in which flexion and extension at the various joints are ... extension at the shoulder. extension at the wrist. Flexion at the wrist. ..."

8. Capital: A Critique of Political Economy by Karl Marx (1906)
"Before passing to the consideration of the extension of that legislation in England, we shall shortly notice certain clauses contained in the Factory Acts, ..."

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