elongation


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elongation

 [e-long-ga´shun]
1. the act or process of increasing in length.
2. a radiographic distortion in which the image is longer than what is being x-rayed.

e·lon·ga·tion

(ē'lon-gā'shŭn),
1. The increase in the gauge length measured after fracture in tension within the gauge length, expressed in percentage of original gauge length.
2. The lengthening of a macromolecule, for example, in the synthesis of long-chain fatty acids or in the synthesis of a protein.

elongation

[i′longā′shən]
Etymology: L, elongatio, a prolonging
a state of being lengthened or extended.

e·lon·ga·tion

(ē-long-gāshŭn)
radiology Radiographic distortion in which the image appears longer than it is; caused by insufficient vertical angulation.

e·lon·ga·tion

(ē-lawng-gāshŭn)
Stretching lengthwise or result of such action.

elongation (ē´lônggā´shən),

n the process or condition of increasing in length before breaking; indicates ductility (e.g., of a metal).
elongation, percent,
n 1. the increase in length of a material after fracture in tension.
n 2. a mechanical test usually employed to measure ductility.

elongation

1. in protein synthesis, cyclic process of growth of a polypeptide chain from mRNA attached to ribosomes. Requires mRNA, ribosomes, activated aminoacyl-tRNA, elongation factor EF-Tu activated with GTP.
2. in fatty acids, a process of adding carbon from acetyl CoA to a lengthening acyl chain. Mechanism for achieving diversity of fatty acids in biological systems.

elongation factor
one in a group of proteins involved in the elongation of polypeptide chains during protein synthesis.
References in periodicals archive ?
By contrast, the addition of 10% SEBS to the blend of 80% polypropylene and 20% polystyrene in the present work increased the impact strength and the elongation ten-fold.
On the other hand, PP2/EPR2 instead showed a gradual increase in elongation to break over the entire corresponding range of total rubber content, being approximately the same at 40 wt%.
Turning to current work, David Gray made some very good drawings of Mercury at the morning elongation of 2012 November-December, which were published in a Section Note in the 2013 April Journal.
In this test, the material is stretched repeatedly, imitating the recurring elongation and contraction during movement in the finished diaper.
Hachmann and Meissner (7), Handge and Schmidheiny (8), as swell as Wagner and coworkers (9) introduced the testing instruments and methods for elongation properties of polymer melts.
a PolyMedex Discovery Group company that produces biomedical materials for minireally invasive devices, has introduced NanoMed EX compounds with reportedly 45% greater stiffness, without reduction in elongation as compared to Pebax 7233 MED, a thermoplastic elastomer (TPE) made of flexible polyether and rigid polyamide, the company says, adding, "NanoMed EX compounds are designed to bridge the gap between the Pebax TPE resin and nylon 11 in flexural modulus, a key property linked to improved pushability and torque for cardiovascular and neurovascular catheters.
One of these criteria is elongation at break which must be at least 50 %.
Le milieu de terrain defensif de Marseille Edouard Cisse, pas totalement remis d'une elongation aux ischio-jambiers, est forfait pour le deplacement au Paris SG dimanche, a indique l'OM vendredi.
A new elastomeric bisphenol-A vinyl ester features high elongation and toughness for ballistic protection in military vehicles.
The research group has confirmed that P-TEFb, a kind of phosphorylated enzyme, can switch the activity of DSIF, a protein that regulates the transcription elongation of genes.