Dictionary.com
Thesaurus.com

methylation

American  
[meth-uh-ley-shuhn] / ˌmɛθ əˈleɪ ʃən /

noun

Chemistry.
  1. the process of replacing a hydrogen atom with a methyl group.


Etymology

Origin of methylation

First recorded in 1875–80; methylate + -ion

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Babies delivered by Caesarean section showed distinct DNA methylation patterns in several genes involved in immune function and brain development.

From Science Daily • Jun. 2, 2026

Infants who had higher levels of DNA methylation in certain immune-related genes tended to develop less diverse gut microbiomes by 12 months of age.

From Science Daily • Jun. 2, 2026

Paramutation occurs when methylation present on one allele triggers methylation on another allele.

From Science Daily • Jun. 1, 2026

Although more labor-intensive than short-read sequencing, the technique provides a clearer picture of allele differences and distant methylation sites.

From Science Daily • Jun. 1, 2026

Synthetically it may be prepared by the methylation of silver theobromine and silver theophyllin or by boiling heteroxanthine with methyl iodide and potash.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" by Various

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "methylation" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com