hydrogen peroxide

noun

: an unstable compound H2O2 used especially as an oxidizing and bleaching agent, an antiseptic, and a propellant

Examples of hydrogen peroxide 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.
Open bags carefully, wash pans in hot, soapy water, rinse, and dry. Method 4: Using Hydrogen Peroxide and Baking Soda Coat drip pans with baking soda and pour hydrogen peroxide over them. Daley Quinn, Southern Living, 28 Feb. 2025 Never combine bleach with vinegar, ammonia, or products that have hydrogen peroxide, such as toilet bowl cleaners. Matt Fuchs, TIME, 21 Feb. 2025 According to food scientist Schaffner, metals like silver and platinum could cause hydrogen peroxide, an antimicrobial molecule in honey, to break down into water and oxygen. Stephanie Brown, Verywell Health, 15 Feb. 2025 Now, a research center in Florida is planning to test another Lake Guard formula, which uses aluminum sulfate rather than hydrogen peroxide, in Lake Jesup, a 16,000-acre lake in Seminole County that faces multiple harmful algal blooms each year. Diana Kruzman, Smithsonian Magazine, 23 Jan. 2025 See All Example Sentences for hydrogen peroxide

Word History

First Known Use

1872, in the meaning defined above

Time Traveler
The first known use of hydrogen peroxide was in 1872

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Cite this Entry

“Hydrogen peroxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrogen%20peroxide. Accessed 13 Mar. 2025.

Kids Definition

hydrogen peroxide

noun
: an unstable liquid compound containing hydrogen and oxygen and used especially for bleaching and as an antiseptic

Medical Definition

hydrogen peroxide

noun
: an unstable compound H2O2 used especially as an oxidizing and bleaching agent and as an antiseptic

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