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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. Alcohol these reactions are often catalyzed by the addition of an acid or base. catalyst