n]
| 1. | an act or instance of extending. |
| 2. | the state of being extended. |
| 3. | that by which something is extended; an addition: a four-room extension to a house. |
| 4. | an additional period of time given one to meet an obligation: My term paper wasn't finished so I asked for an extension. |
| 5. | something that can be extended; an extended object: a table with drop-leaf extensions. |
| 6. | range of extending; degree of extensiveness; extent: the extension of our knowledge. |
| 7. | an additional telephone that operates on the principal line. |
| 8. | Commerce. a written engagement on the part of a creditor, allowing a debtor further time to pay a debt. |
| 9. | Physics. that property of a body by which it occupies space. |
| 10. | Anatomy.
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| 11. | Surgery. the act of pulling the broken or dislocated part of a limb in a direction from the trunk, in order to bring the ends of the bone into their natural situation. |
| 12. | Also called extent. Logic. the class of things to which a term is applicable, as “the class of such beings as Plato and Alexander” to which the term “man” is applicable. Compare intension (def. 5). |
| 13. | Mathematics. a function having a domain that includes the domain of a given function and that has the same value as the given function at each point in the domain of the given function. |
| 14. | Also called file extension. Computers. one or more characters at the end of a filename, usually following a period, used to indicate the type of file. |
| 15. | Manège. the act of bringing or coming into an extended attitude. |
| 16. | of or pertaining to extension courses. |
extension ex·ten·sion (ĭk-stěn'shən)
n.
Abbr. ext.
The act of straightening or extending a flexed limb.
A pulling or dragging force exerted on a limb in a distal direction.
extension (ĭk-stěn'shən) Pronunciation Key
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extensional
Extensional properties, e.g. extensional equality, relate to the "black-box" behaviour of an object, i.e. how its output depends on its input. The opposite is intensional which concerns how the object is implemented.