pyrethroid
noun
pyrethroid is spelled P-Y-R-E-T-H-R-O-I-D: 10 letters. It appears about once in every 23 million words in written English, the 145,125th most frequent word form (wordfreq, 2021 data). As a noun, pyrethroid means “Any of several synthetic insecticides having a structure based on pyrethrin” (English Wiktionary, September 2026). The plural of pyrethroid is pyrethroids.
How many letters and syllables are in pyrethroid?
| Letters | 10: P-Y-R-E-T-H-R-O-I-D |
|---|---|
| In writing | about once in every 23 million words; the 145,125th 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 pyrethroid?
Pyrethroid appears about once in every 23 million words in written English, the 145,125th 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 pyrethroid
- pyrethroids plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does pyrethroid mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Any of several synthetic insecticides having a structure based on pyrethrin.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does pyrethroid come from?
From pyrethrin + -oid.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).