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[meth-uh-ley-shuh n] /ˌmɛθ əˈleɪ ʃən/
noun, Chemistry.
the process of replacing a hydrogen atom with a methyl group.
Origin of methylation
1875-80; methylate + -ion Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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  • He made the important discovery that some animals possess the power of methylation as well as of demethylation.

    The Toxicity of Caffein William Salant
  • It has been explained that by the methylation of rosaniline Hofmann obtained violet colouring-matters.

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

    Coal Raphael Meldola

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