How do you pronounce "peroxide"?

In American English: /pɝˈɑːkˌsaɪd/ (pur-AHK-seyed). In British English: /pəɹˈɒksaɪd/ (puhr-OKS-eyed). In Canadian English: /pɝˈɑːkˌsaɪd/ (pur-AHK-seyed). In Australian English: /pəɹˈɒksaɪd/ (puhr-OKS-eyed).

Is "peroxide" pronounced differently in American and British English?

Yes. In American English it's pronounced /pɝˈɑːkˌsaɪd/ (pur-AHK-seyed), while in British English it's /pəɹˈɒksaɪd/ (puhr-OKS-eyed).

How to Pronounce "peroxide"

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peroxide

regional

/pɝˈɑːkˌsaɪd/

pur-AHK-seyed

Syllable Breakdown

pɝper·ɑːkox·saɪdide

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14