methylation
/ˌmɛθɪˈleɪʃən/noun
methylation is spelled M-E-T-H-Y-L-A-T-I-O-N: 11 letters. It appears about once in every 1 million words in written English, the 32,393rd most frequent word form (wordfreq, 2021 data). As a noun, methylation means “The addition of a methyl group to a molecule” (English Wiktionary, September 2026). The plural of methylation is methylations.
How many letters and syllables are in methylation?
| Letters | 11: M-E-T-H-Y-L-A-T-I-O-N |
|---|---|
| In writing | about once in every 1 million words; the 32,393rd most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is methylation?
Methylation appears about once in every 1 million words in written English, the 32,393rd most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce methylation?
- /ˌmɛθɪˈleɪʃən/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-methylation.wav, Wikimedia Commons (author and licence on each file's page).
Forms of methylation
- methylations plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does methylation mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The addition of a methyl group to a molecule.
- 2
The addition of a methyl group to cytosine and adenine residues in DNA that leads to the epigenetic modification of DNA and the reduction of gene expression and protein production.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Methylation in Spanish, French, German and Portuguese
In the sense addition of a methyl group:
| Language | Words |
|---|---|
| French | méthylation |
| German | Methylierung |
| Portuguese | metilação |
| Spanish | metilación |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does methylation come from?
From methyl + -ation.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).