/pɚˈɑˌksaɪd/
Say it backPeroxide is a chemical compound containing an O–O single bond, commonly referring to hydrogen peroxide (H2O2) used as a disinfectant or bleaching agent. The term can also describe any organic compound with a peroxide functional group. In everyday use, it denotes aqueous hydrogen peroxide, typically sold in solutions up to 3%, and employed for cleaning, antisepsis, and stain removal.
"The lab added hydrogen peroxide to the reaction as the oxygen source."
"She dabbed a tiny amount of peroxide on the cut to disinfect it."
"This toothpaste uses a peroxide compound to whiten teeth."
Pronounce as /ˌpɚ-ˈɒk-ˌsaɪd/ in US, /ˌpɪə-ˈɒk-ˌsaɪd/ in UK, and /ˌpəˈrɒk.saɪd/ in AU. The primary stress falls on the second syllable of the root component: perOXide. The first syllable is a reduced 'per-' or 'pɚ-' in US, with a clear /ɒ/ in the stressed syllable; the final '-ide' is pronounced /aɪd/ or /aɪd/ depending on dialect. Practically, say per-OX-ide, with a light, quick finale. For clarity, emphasize the 'ox' as a strong nucleus.
Common errors include truncating the middle syllable or turning '-oxide' into a hard 'ox-ide' without the correct vowel quality. People often reduce the second syllable to 'pok-syde' or merge syllables as 'per-oxide' with weak second stress. Correction: clearly articulate three syllables: per-ox-ide, with the 'ox' sounding like /ɒk/ or /ɒ/ and the final /aɪd/; ensure the onset of -ox is stressed slightly more than the first dash and maintain the 'er' as a reduced schwa /ɚ/ in US or /ɪ/ in UK when appropriate.
In US, stress is on the second syllable: /ˌpɚˈɒk.saɪd/. In UK, /ˌpɪəˈɒk.saɪd/ with a clearer treatment of the first vowel in 'per-' and non-rhotic 'r' behavior. In AU, /ˌpəˈɒk.saɪd/ with a more centralized initial vowel and non-rhoticity. The main differences are vowel quality in the first syllable and rhoticity; the 'ox' component remains /ɒk/ across dialects, while the final /aɪd/ is consistently present but may be shorter in informal speech.
The difficulty stems from the three-syllable rhythm and the 'Ox' cluster with a short, clipped vowel in the first or second syllable, plus the final /aɪd/ that can blur with an '-ide' ending in rapid speech. For non-native speakers, the challenge is maintaining three distinct syllables and preventing vowel merging with the preceding /ɒ/ or /ə/; practice helps you place the stress correctly and retain precise vowel heights. IPA awareness and listening to native models help avoid confusion.
Peroxide has explicit three-syllable structure with no silent letters, and the central 'ox' is a strong nucleus, not a diphthong collapse. The primary stress is on the second syllable, while 'per' is often reduced to /pɚ/ in US speech. For precision, pronounce as per-ox-ide with clear separation; avoid blending 'per' and 'ox' too tightly and keep the final /aɪd/ crisp rather than a drawn-out 'ide'.
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US: rhotic /ɚ/ in 'per' and a broad /ɒ/ in 'ox'; UK: non-rhotic /ɪə/ or /ɪ/ and a clearer /ɒ/; AU: more centralized first vowel, non-rhotic; all share final /aɪd/. Use IPA as a guide for vowel shifts and aim for crisp consonants in -de (/daɪd/). Pay attention to the 'ox' cluster, ensuring it isn’t swallowed.
Peroxide comes from the combining form peroxide with the suffix -ide, reflecting a chemical species containing a peroxide linkage (O–O). The term peroxide first appeared in the early 19th century as chemists observed compounds with a single O–O bond in hydroxyl and hydroperoxide families. The root 'hydro-' or 'hydrogen' points to hydrogen peroxides—compounds in which hydrogen contributes to the reactive O–O moiety. Over time, scientists broadened the meaning to include organic peroxides (RO–O–OR) and inorganic peroxides (M–O–O–M). The 30-40s saw hydrogen peroxide become a household antiseptic and bleaching agent, cementing its common usage. The word’s first known uses appear in chemical dictionaries and journals of the period, with the modern sense crystallizing around practical safety and application in medicine and industry.
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💡 These words have similar meanings to "peroxide" and can often be used interchangeably.
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Words that rhyme with "peroxide"
-ide sounds
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