pyrrolizidine
/pɪɹəʊˈlɪzəˌdiːn/noun
pyrrolizidine is spelled P-Y-R-R-O-L-I-Z-I-D-I-N-E: 13 letters. It appears about once in every 62 million words in written English, the 246,401st most frequent word form (wordfreq, 2021 data). As a noun, pyrrolizidine means “Any of a class of alkaloids, found in many plants, that are hepatotoxic” (English Wiktionary, September 2026). The plural of pyrrolizidine is pyrrolizidines.
How many letters and syllables are in pyrrolizidine?
| Letters | 13: P-Y-R-R-O-L-I-Z-I-D-I-N-E |
|---|---|
| In writing | about once in every 62 million words; the 246,401st 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 pyrrolizidine?
Pyrrolizidine appears about once in every 62 million words in written English, the 246,401st 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 pyrrolizidine?
- UK /pɪɹəʊˈlɪzəˌdiːn/
- UK /pɪɹəʊˈlɪzəˌdaɪn/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of pyrrolizidine
- pyrrolizidines plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does pyrrolizidine mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Any of a class of alkaloids, found in many plants, that are hepatotoxic.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).