hydrogen peroxide

noun

Definition of hydrogen peroxide 

: 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

Granite or marble countertops Mix baking soda and hydrogen peroxide to form a thick paste the consistency of peanut butter. NBC News, "How to get stains out of almost anything," 24 June 2018 Hair dye kits on the market today often contain a mixture that includes ammonia or hydrogen peroxide to open the cuticle of the hair and deposit a more lasting color to each strand. Julissa Treviño, Smithsonian, "Graphene Hair Dye Is Gentle on Your Locks. But Is It Safe?," 21 Mar. 2018 Leverette says to bear in mind that hydrogen peroxide can bleach out the color of darker carpets and upholstery. NBC News, "How to get stains out of almost anything," 24 June 2018 It is lifted by a thin, 17-foot rotor blade that whirls just above the pilot's head under the power of hydrogen peroxide fuel broken down by catalytic action into steam that is ejected at high speed from the rotor tips. Scott Harrison, latimes.com, "From the Archives: The Pinwheel helicopter," 19 June 2018 The fluorescent silk and the light together generate chemicals similar to hydrogen peroxide. Angela Chen, The Verge, "How scientists are engineering silk to save our bodies," 4 May 2018 Some do rely on various formulations of hydrogen peroxide to get there, while other brands offer versions with chamomile and citrus. Rachel Nussbaum, Glamour, "We Tried the 2018 Takes on Hair Lighteners, and Here Are Our Honest Thoughts," 7 June 2018 The silk doesn’t distinguish harmful pathogens (like E. coli) from benign ones, but, as Kim points out, neither does hydrogen peroxide. Angela Chen, The Verge, "How scientists are engineering silk to save our bodies," 4 May 2018 Only plain toothpaste that is low in fluoride should be used for these emergency situations, because whitening toothpastes contain hydrogen peroxide, which will irritate the skin, and gels aren't as effective. Mar Miranda, Marie Claire, "5 Quick Beauty Fixes (Using Products You Already Own!)," 20 Sep. 2010

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

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First Known Use of hydrogen peroxide

1872, in the meaning defined above

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Time Traveler for hydrogen peroxide

The first known use of hydrogen peroxide was in 1872

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More Definitions for hydrogen peroxide

hydrogen peroxide

noun

English Language Learners Definition of hydrogen peroxide

: a liquid that is used to make things lighter in color or to kill bacteria

hydrogen peroxide

noun

Kids Definition of hydrogen peroxide

: a liquid chemical containing hydrogen and oxygen and used for bleaching and as an antiseptic

hydrogen peroxide

noun

Medical Definition of hydrogen peroxide 

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

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More from Merriam-Webster on hydrogen peroxide

Spanish Central: Translation of hydrogen peroxide

Nglish: Translation of hydrogen peroxide for Spanish Speakers

Britannica.com: Encyclopedia article about hydrogen peroxide

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