hydantoin
noun
hydantoin is spelled H-Y-D-A-N-T-O-I-N: 9 letters. It appears about once in every 83 million words in written English, the 290,185th most frequent word form (wordfreq, 2021 data). As a noun, hydantoin means “The heterocycle imidazolidine-2,4-dione derived from urea and glycolic acid; any of its many derivatives” (English Wiktionary, September 2026). The plural of hydantoin is hydantoins.
How many letters and syllables are in hydantoin?
| Letters | 9: H-Y-D-A-N-T-O-I-N |
|---|---|
| In writing | about once in every 83 million words; the 290,185th 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 hydantoin?
Hydantoin appears about once in every 83 million words in written English, the 290,185th 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 hydantoin
- hydantoins plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does hydantoin mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The heterocycle imidazolidine-2,4-dione derived from urea and glycolic acid; any of its many derivatives
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).