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Definitions

peroxide

[puh-rok-sahyd] / pəˈrɒk saɪd /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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Blocking the enzyme causes hydrogen peroxide to accumulate inside the mitochondria of tumor cells, eventually triggering cell death.

From Science Daily Sep. 17, 2026

Officials have been using chemicals, including reportedly hydrogen peroxide, to clean a green algae bloom which has taken hold in the pool since it was re-filled following a paint job earlier this month.

From BBC Jun. 22, 2026

National Park Service workers this week have been trying to clean the algae blooms off the bottom of the 2,000-foot-long pool by pouring hydrogen peroxide into the water and vacuuming the floor.

From The Wall Street Journal Jun. 21, 2026

As workers scrambled to pump out murky water and dumped hydrogen peroxide into the pool, Trump took no responsibility for what many observers chalked up to shoddy workmanship.

From Barron's Jun. 21, 2026

I pour on peroxide till the whole line bubbles white.

From "How It Went Down" by Kekla Magoon

This allows GPX4 to neutralize lipid peroxides, harmful molecules that would otherwise damage the membrane.

From Science Daily Dec. 9, 2025

"With its fin immersed into the cell membrane, it rides along the inner surface and swiftly detoxifies lipid peroxides as it goes."

From Science Daily Dec. 9, 2025

Larger fines were assessed for failing to designate a point person to help fight the fire and failing to give a complete inventory of the organic peroxides on site when firefighters arrived, she said.

From Seattle Times Sep. 25, 2023

When ozone wafts into buildings, it reacts with limonene and similar molecules called monoterpenes, turning them into peroxides, alcohols, and other molecules that grow into airborne particles.

From Science Magazine Feb. 24, 2022

Lead and manganese oxides may also be oxidized to peroxides by the action of oxygen, and in this event might act as very active catalyzing agents or carriers of oxygen.

From Paint Technology and Tests by Henry A. Gardner

Puffy-faced and peroxided, Koepka finally admitted, “I’ll be honest: I can’t compete with these guys week in and week out.”

From Washington Post Feb. 22, 2023

Murray SawChuck, 38, a magician known for his spiky peroxided hair and a self-anointed role as “the Dennis the Menace of magic,” notes he is free in the evenings to attend other shows.

From The Wall Street Journal Oct. 5, 2016

To mark a change, she peroxided her hair.

From New York Times Feb. 11, 2014

With his peroxided locks, heavy mascara and volatile sensitivity, his Jackson is a cross between punky rockers Billy Idol and Billie Joe Armstrong, with a dash of corrupt, rabble-rousing politico Huey Long thrown in.

From Seattle Times Sep. 21, 2012

When it was Dad’s move, I’d steal looks at him in his button-down shirt, trying to remember the fast-fading picture of the guy with peroxided hair and a leather jacket.

From "If I Stay" by Gayle Forman




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