Peroxide Meaning

/pəˈrɒksʌɪd/
B2

Definition, CEFR level B2, pronunciation, examples, and quiz.

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nounA divalent radical or anion containing two oxygen atoms linked by a covalent bond; any substance containing this group yields hydrogen peroxide when treated with an acid.

nounHydrogen peroxide, especially when in an aqueous solution used as a bleach.

She bleached her hair blond with peroxide.
What's the chemical formula for hydrogen peroxide?
Hydrogen peroxide bubbles when put on a wound.
CEFR Practice Quiz
The hairdresser applied ____ to bleach the client's dark brown hair.
CEFR Practice Quiz (Alternate)
She used hydrogen ____ to disinfect the wound before applying a sterile bandage.

Etymology tree Proto-Indo-European *per- Proto-Italic *per Latin perbor. Proto-Indo-European *per-der. Proto-Italic *peri- Latin per-bor. English per- Proto-Indo-European *h₂eḱ-der.? Ancient Greek ὀξύς (oxús) Proto-Indo-European *ǵenh₁- Proto-Indo-European *-os Proto-Indo-European *ǵénh₁os Proto-Hellenic *génos Ancient Greek γένος (génos) French oxygène Proto-Indo-European *h₂eḱ- Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *h₂eḱéh₁yeti Proto-Italic *akēō Latin aceō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin acidusbor. French acide blend French oxidebor. English oxide English peroxide From per- + oxide.

"Thus far, Dr. Petrakis said, he had found that in women with […] extractable breast fluid, the amount of lipid peroxides in the fluid was on the average seven times higher in Caucasian women than in women of Chinese de[s]cent. In addition, women with cystic breast disease, who face a higher than usual risk of breast cancer, appear to have more peroxides in their breast fluid than women with normal breasts." — 1975 March 23, Jane Brody, “Clue to Cancer Found in Breast Fluid”, in The New York Times:
"The O–O bond in benzoyl peroxide and the C–N bonds in AIBN homolyze under thermal or photochemical conditions." — 2007, Robert B. Grossman, The Art of Writing Reasonable Organic Reaction Mechanisms, →ISBN:

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CEFR Practice Quiz
The hairdresser applied ____ to bleach the client's dark brown hair.
CEFR Practice Quiz (Alternate)
She used hydrogen ____ to disinfect the wound before applying a sterile bandage.

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