dieldrin
noun
dieldrin is spelled D-I-E-L-D-R-I-N: 8 letters. It appears about once in every 49 million words in written English, the 217,360th most frequent word form (wordfreq, 2021 data). As a noun, dieldrin means “A cyclodiene insecticide, related to aldrin, that is a persistent organic pollutant” (English Wiktionary, September 2026). The plural of dieldrin is dieldrins.
How many letters and syllables are in dieldrin?
| Letters | 8: D-I-E-L-D-R-I-N |
|---|---|
| In writing | about once in every 49 million words; the 217,360th 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 dieldrin?
Dieldrin appears about once in every 49 million words in written English, the 217,360th 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 dieldrin
- dieldrins plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does dieldrin mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A cyclodiene insecticide, related to aldrin, that is a persistent organic pollutant.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Dieldrin in Spanish, French, German and Portuguese
In the sense cyclodiene insecticide:
| Language | Words |
|---|---|
| French | dieldrine |
| German | Dieldrin |
| Spanish | dieldrín |
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.