isobutane

noun

iso·​bu·​tane ˌī-sō-ˈbyü-ˌtān How to pronounce isobutane (audio)
: a gaseous branched-chain hydrocarbon (CH3)3CH isomeric with normal butane that is used especially as a fuel

Examples of isobutane in a Sentence

Recent Examples on the Web
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This portable option uses the same isobutane canisters recommended for high-efficiency backpacking stoves to keep a small camp free from pests. Bestreviews, Mercury News, 3 June 2026 Size and weight: Propane and isobutane stoves are available in a wide range of sizes, weights and outputs. Wes Siler, Outside Online, 21 June 2025 But before anyone can explain that, the isobutane fire begets an isobutane explosion. Louis Peitzman, Vulture, 11 Apr. 2025 The Jetboil Flash combines a lower burner that threads directly onto a propane/isobutane canister, a set of packable legs that stabilize the system, a 1-L pot that locks in atop the burner, a pot lid with pour and strainer sides, and a cup for serving. New Atlas, 21 Mar. 2025 See All Example Sentences for isobutane

Word History

Etymology

International Scientific Vocabulary

First Known Use

1876, in the meaning defined above

Time Traveler
The first known use of isobutane was in 1876

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Cite this Entry

“Isobutane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isobutane. Accessed 20 Jun. 2026.

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