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Definition of TRANSIENCE. : the quality or state of being transient. ADVERTISEMENT. 1  transience.
In organic chemistry, transesterification /ËtraenzËÉstÉrÉ¨fÉ¨ËkeÉªÊÉn/ ËtrÃ¦nzËÉstÉrÉ¨fÉ¨ËkeÉªÊÉn is the process of exchanging the organic Groupâ³ r of an ester with the organic Groupâ² r of an. alcoholhe reverse reaction, methanolysis, is also an example of transesterification. This process has been used to recycle polyesters into individual monomers (see plastic recycling). It is also used to convert fats (triglycerides) into biodiesel.