单词	methylation
释义	methylation noun meth·​yl·​a·​tion ˌme-thə-ˈlā-shən  : the introduction of a methyl radical into a substance The methylation of metals (that is, the substitution of a metal atom for the hydrogen atom of the hydroxyl group of a methyl alcohol molecule) can result in the metal's becoming volatile. Corale L. Brierley especially : dna methylation As cells begin to specialize into adult tissues, methylation seems to inactivate genes that are no longer needed. John Travis Word History First Known Use 1855, in the meaning defined above Phrases Containing methylation DNA methylation DNA methylation Medical Definition methylation noun meth·​yl·​ation ˌmeth-ə-ˈlā-shən  : introduction of the methyl group into a chemical compound especially : dna methylation
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英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。