noun, often attributive
iso·​pro·​pyl | \ ˌī-sə-ˈprō-pəl How to pronounce isopropyl (audio) \

Definition of isopropyl

: the alkyl radical isomeric with straight-chain propyl often used in combination

Examples of isopropyl in a Sentence

Recent Examples on the Web Dedicate a bottle of 70 percent isopropyl to pest control. Nan Sterman, San Diego Union-Tribune, 4 June 2022 Each element consists of a hexagonal shell of magnesium alloy filled with a fire mixture whose main ingredients are gasoline, isopropyl nitrate and rubber. David Hambling, Forbes, 25 Mar. 2022 According to Gorilla Glue's website, the glue -- which is 100% waterproof and usually used for fixing bathroom tiles, wood flooring and decking -- can be removed with acetone or isopropyl alchol. Alaa Elassar, CNN, 19 June 2021 Never use drinking alcohol or any other type of alcohol besides ethanol and isopropyl. Angela Watson,, 18 Mar. 2021 Here’s what democracy will require in Wisconsin this year: 300,000 ounces of hand sanitizer, 10,000 liters of surface disinfectant and 500,000 isopropyl screen wipes. Gerald Porter Jr.,, 29 Oct. 2020 The center does not recommend using sanitizers unless ethanol or isopropyl is the alcohol used as methanol is not effective against COVID-19. Miriam Marini, Detroit Free Press, 22 Apr. 2020 NYC Mask Crusaders allows artists, institution laborers and others to donate their extra masks, gloves and other personal protective equipment, including eyewear, clothing and isopropyl or ethyl alcohol. New York Times, 1 Apr. 2020 LaRose’s office told county boards the same day that they would be reimbursed for purchasing sanitizer, disinfectants, disinfecting or antibacterial wipes, disposable gloves, rubbing alcohol or isopropyl and other sanitizing materials. Rick Rouan, Scott Wartman And Cole Behrens,, 12 Mar. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'isopropyl.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of isopropyl

1866, in the meaning defined above

History and Etymology for isopropyl

International Scientific Vocabulary

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Time Traveler for isopropyl

Time Traveler

The first known use of isopropyl was in 1866

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Dictionary Entries Near isopropyl



isopropyl alcohol

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Statistics for isopropyl

Last Updated

15 Jun 2022

Cite this Entry

“Isopropyl.” Dictionary, Merriam-Webster, Accessed 26 Jun. 2022.

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More Definitions for isopropyl


iso·​pro·​pyl | \ ˌī-sə-ˈprō-pəl How to pronounce isopropyl (audio) \

Medical Definition of isopropyl

: the alkyl group isomeric with normal propyl


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