elongation
elongation [e-long-ga´shun]
elongation (ē´lônggā´sh
n),
[i′longā′shən]
Etymology: L, elongatio, a prolonging
a state of being lengthened or extended.
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.
elongation (ē´lônggā´sh
n),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.
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.
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