tautomerism
noun
tautomerism is spelled T-A-U-T-O-M-E-R-I-S-M: 11 letters. It appears about once in every 76 million words in written English, the 275,970th most frequent word form (wordfreq, 2021 data). As a noun, tautomerism means “A form of isomerism in which a dynamic equilibrium between multiple isomers exists, such as that between an enol and a ketone” (English Wiktionary, September 2026). The plural of tautomerism is tautomerisms.
How many letters and syllables are in tautomerism?
| Letters | 11: T-A-U-T-O-M-E-R-I-S-M |
|---|---|
| In writing | about once in every 76 million words; the 275,970th 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 tautomerism?
Tautomerism appears about once in every 76 million words in written English, the 275,970th 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).
Forms of tautomerism
- tautomerisms plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does tautomerism mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A form of isomerism in which a dynamic equilibrium between multiple isomers exists, such as that between an enol and a ketone.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does tautomerism come from?
From tautomer + -ism.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).