isobutane
noun
isobutane is spelled I-S-O-B-U-T-A-N-E: 9 letters. It appears about once in every 25 million words in written English, the 152,206th most frequent word form (wordfreq, 2021 data). As a noun, isobutane means “A hydrocarbon, a particular isomer of C₄H₁₀ found in natural gas” (English Wiktionary, September 2026). The plural of isobutane is isobutanes.
How many letters and syllables are in isobutane?
| Letters | 9: I-S-O-B-U-T-A-N-E |
|---|---|
| In writing | about once in every 25 million words; the 152,206th 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 isobutane?
Isobutane appears about once in every 25 million words in written English, the 152,206th 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 isobutane?
- UK
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Tesco250-isobutane.wav, Wikimedia Commons (author and licence on each file's page).
Forms of isobutane
- isobutanes plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does isobutane mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A hydrocarbon, a particular isomer of C₄H₁₀ found in natural gas.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Isobutane in Spanish, French, German and Portuguese
In the sense a hydrocarbon: C4H10:
| Language | Words |
|---|---|
| French | isobutane, 2-méthylpropane, méthylpropane |
| German | Isobutan |
| Portuguese | isobutano |
| Spanish | metilpropano, isobutano |
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 isobutane come from?
From iso- + butane. From being an isomer of butane, different from n-butane (“'normal' butane”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).