Extension

Extension
The process of straitening or the state of being strait. Extension of the hip and knee joints is necessary to stand up from the sitting position.
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1. The act of bringing the distal portion of a joint in continuity (though only parallel) with the long axis of the proximal portion. 2. A pulling or dragging force exerted on a limb in a distal direction. 3. Obsolete term for traction. [L. extensio, a stretching out]
- Buck e. SYN: Buck traction.
- primer e. a technique for determining the 5′-untranslated region of a specific mRNA molecule. Uses an oligonucleotide complementary to the known RNA sequence as a primer for cDNA synthesis via reverse transcriptase.
- ridge e. an intraoral surgical operation for deepening the labial, buccal, and/or lingual sulci; it is performed to increase the intraoral height of the alveolar ridge in order to assist denture retention.
- skeletal e. SYN: skeletal traction.

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ex·ten·sion ik-'sten-chən n
1) the stretching of a fractured or dislocated limb so as to restore it to its natural position
2) an unbending movement around a joint in a limb (as the knee or elbow) that increases the angle between the bones of the limb at the joint compare FLEXION (1)

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n.
1. the act of extending or stretching, especially the muscular movement by which a limb is straightened.
2. the application of traction to a fractured or dislocated limb in order to restore it to its normal position.

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ex·ten·sion (ek-stenґshən) [L. extensio] 1. the movement that straightens or increases the angle between the bones or parts of the body. 2. the bringing of the members of a limb into or toward a straight relation. 3. enlargement or prolongation.


Medical dictionary. 2011.

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  • extension — [ ɛkstɑ̃sjɔ̃ ] n. f. • 1361; bas lat. extensio, de extendere « étendre » 1 ♦ Didact. Action de se développer dans le sens de la longueur; son résultat. « Une matière ductile qui par son extension devient un filet herbacé » (Buffon). ⇒ allongement …   Encyclopédie Universelle

  • Extension — • Philosophical term. From Lat. ex tendere, to spread out Catholic Encyclopedia. Kevin Knight. 2006. Extension     Extension     † …   Catholic encyclopedia

  • Extension — may refer to: * Extension (kinesiology), a movement of a joint in which one part of the body is moved away from another. * Extension (metaphysics), the property of taking up space * Extension (semantics), the set of things to which a property… …   Wikipedia

  • extension — ex·ten·sion n: an increase in length of time; specif: an increase in the time allowed under an agreement Merriam Webster’s Dictionary of Law. Merriam Webster. 1996. extension …   Law dictionary

  • extensión — sustantivo femenino 1. Acción y resultado de extender o extenderse: la extensión de la crisis económica, la extensión de un incendio, la extensión de brazos y piernas. La extensión de la enfermedad es imparable. El monte era un obstáculo para la… …   Diccionario Salamanca de la Lengua Española

  • Extension — (zu lat. extendere ‚ausdehnen, ausweiten‘, bzw. Lehnwort aus dem engl., dann [ɪkˈstɛnʃən]) steht für: engl. hair extension, eine künstliche Haarverlängerung die Streckung eines Gelenkes (z. B. die Aufrichtung der Wirbelsäule), siehe… …   Deutsch Wikipedia

  • Extensión — Saltar a navegación, búsqueda Extensión puede referirse a: Extensión (anatomía), cuando una parte del cuerpo se aleja de otra parte del cuerpo, pivotando en una articulación. Extensión (música), el intervalo entre el sonido más grave y el más… …   Wikipedia Español

  • extension — Extension. s. f. v. Estenduë, Tout corps a extension. on ne peut s imaginer qu il y ait de la quantité, où il n y a point d extension. On dit fig. Extension de privilege, extension d authorité, pour dire, Augmentation d authorité, augmentation de …   Dictionnaire de l'Académie française

  • 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.… …   The Collaborative International Dictionary of English

  • extensión — f. Acción muscular en la que dos miembros se alejan hasta disponerse más o menos alineados. Se opone a flexión. Medical Dictionary. 2011. extensión movimiento mediante el cual dos segmentos de …   Diccionario médico

  • extensión — (Del lat. extensĭo, ōnis). 1. f. Acción y efecto de extender o extenderse. 2. Línea conectada a una centralita. 3. Biol. y Med. Preparación para examen microscópico, generalmente de sangre, exudados o cultivos bacterianos, en la que estas… …   Diccionario de la lengua española

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