How do you pronounce "irradiation"?

In American English: /ˌɪˌreɪdiːˈeɪʃən/ (i-rayd-ee-AYSH-uhn). In British English: /ˌɪɹeɪdɪˈeɪʃən/ (ir-ayd-i-AYSH-uhn). In Canadian English: /ˌɪˌreɪdiːˈeɪʃən/ (i-rayd-ee-AYSH-uhn). In Australian English: /ˌɪɹeɪdɪˈeɪʃən/ (ir-ayd-i-AYSH-uhn).

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

Yes. In American English it's pronounced /ˌɪˌreɪdiːˈeɪʃən/ (i-rayd-ee-AYSH-uhn), while in British English it's /ˌɪɹeɪdɪˈeɪʃən/ (ir-ayd-i-AYSH-uhn).

How to Pronounce "irradiation"

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irradiation

regional

/ˌɪˌreɪdiːˈeɪʃən/

i-rayd-ee-AYSH-uhn

Syllable Breakdown

ɪir·reɪdra·iːdi·eɪʃa·əntion

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14