isopropyl

noun

iso·​pro·​pyl ˌī-sə-ˈprō-pəl How to pronounce isopropyl (audio)
often attributive
: the alkyl radical isomeric with straight-chain propyl
often used in combination

Examples of isopropyl in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Dampen a cloth with the isopropyl and water solution. Nashia Baker, Martha Stewart, 23 May 2026 From skin-softening emollients, such as isopropyl palmitate and vitamin E, to soothing, hydrating panthenol and even moisturizing castor oil, the Best of Beauty Award-winning formula more than covers your healthy nail bases. Sarah Felbin, Allure, 30 Apr. 2026 Finally, disinfect the tools by wiping the blades with a cloth dampened with isopropyl (rubbing) alcohol. Mary Marlowe Leverette, The Spruce, 10 Feb. 2026 How to make your own deicing solution To make your own de-icing tool, AAA says to mix one part isopropyl, or rubbing alcohol, and two parts water in a spray bottle. Marina Johnson, Louisville Courier Journal, 28 Jan. 2026 Mix one part isopropyl (rubbing) alcohol with two parts water and place a few drops of dish soap to coat the ice more evenly. Dale Denwalt, Oklahoman, 24 Jan. 2026 Use isopropyl or rubbing alcohol for both cleaning mirrors and removing tough spots. Karen Brewer Grossman, Southern Living, 15 Nov. 2025 The ethanol or isopropyl acts as a carrier that helps the ink dry and not smear. Bestreviews, Chicago Tribune, 8 Aug. 2025

Word History

Etymology

International Scientific Vocabulary

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of isopropyl was in 1866

Browse Nearby Words

Cite this Entry

“Isopropyl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isopropyl. Accessed 6 Jun. 2026.

Medical Definition

isopropyl

noun
iso·​pro·​pyl ˌī-sə-ˈprō-pəl How to pronounce isopropyl (audio)
: the alkyl group isomeric with normal propyl
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