How do you pronounce "iridium"?

In American English: /ˌɪˈrɪdiːəm/ (i-RID-ee-uhm). In British English: /ɪɹˈɪdiəm/ (ir-ID-ee-uhm). In Canadian English: /ˌɪˈrɪdiːəm/ (i-RID-ee-uhm). In Australian English: /ɪɹˈɪdiəm/ (ir-ID-ee-uhm).

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

Yes. In American English it's pronounced /ˌɪˈrɪdiːəm/ (i-RID-ee-uhm), while in British English it's /ɪɹˈɪdiəm/ (ir-ID-ee-uhm).

How to Pronounce "iridium"

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iridium

regional

/ˌɪˈrɪdiːəm/

i-RID-ee-uhm

Syllable Breakdown

ɪir·rɪdid·iːi·əmum

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14