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transmethylation [trans-meth-uh-ley-shuh n, tranz-] Word Origin noun Chemistry.
- the transfer of a methyl group from one compound to another.
Origin of transmethylation trans- + methylation transmethylation in Medicine transmethylation [trăns-mĕth′ə-lā′shən, trănz-] n.
- The transfer of a methyl group from one compound to another.