• synonyms


[meth-uh-ley-shuh n]
noun Chemistry.
  1. the process of replacing a hydrogen atom with a methyl group.
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Origin of methylation

First recorded in 1875–80; methylate + -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for methylation

Contemporary Examples

Historical Examples

  • He made the important discovery that some animals possess the power of methylation as well as of demethylation.

  • It has been explained that by the methylation of rosaniline Hofmann obtained violet colouring-matters.


    Raphael Meldola

  • The methylation of aniline can obviously be carried out by the foregoing process only when beet-sugar residues are available.


    Raphael Meldola