isoprene
/ˈaɪsəˌpɹin/noun
isoprene is spelled I-S-O-P-R-E-N-E: 8 letters. It appears about once in every 17 million words in written English, the 124,184th most frequent word form (wordfreq, 2021 data). As a noun, isoprene means “An unsaturated hydrocarbon, C₅H₈, that is readily polymerized; natural rubber (caoutchouc) is cis-1,4-polyisoprene, and trans-1,4-polyisoprene is…” (English Wiktionary, September 2026). The plural of isoprene is isoprenes.
How many letters and syllables are in isoprene?
| Letters | 8: I-S-O-P-R-E-N-E |
|---|---|
| In writing | about once in every 17 million words; the 124,184th 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 isoprene?
Isoprene appears about once in every 17 million words in written English, the 124,184th 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 isoprene?
- UK /ˈaɪsə(ʊ)pɹiːn/
- US /ˈaɪsəˌpɹin/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of isoprene
- isoprenes plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does isoprene mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
An unsaturated hydrocarbon, C₅H₈, that is readily polymerized; natural rubber (caoutchouc) is cis-1,4-polyisoprene, and trans-1,4-polyisoprene is present in gutta-percha and balata; it is the structural basis for the terpenes.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Isoprene in Spanish, French, German and Portuguese
In the sense isoprene:
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.
Where does isoprene come from?
Coined (1860) by British chemist C. G. Williams, from iso- (“equal; different, isomeric”) + pr(op)- (“three carbon prefix”) + -ene (“alkene suffix”). A misnomer.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).