The conversion of a compound into a different isomeric form(noun)
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Use "isomerisation" in a sentence
"Sommelet rearrangements as well as intra-anionic ether isomerisation."
"Other effects of the B12 coenzymes are still not easy to explain in detail, particularly the part they play in the isomerisation reactions which led to their discovery."
"All these firms have made massive investments in improving the quality of fuel by de-sulphurisation and isomerisation, processes in the refinement of fuel by which its qualityis made better, so that vehicles using it cause minimal pollution."