How do you pronounce "diatoms"?

In American English: /ˈdaɪəˌtɑːmz/ (DEYE-uh-tahmz). In British English: /dˈaɪətəmz/ (D-eye-uht). In Canadian English: /ˈdaɪəˌtɑːmz/ (DEYE-uh-tahmz). In Australian English: /dˈaɪətəmz/ (D-eye-uht).

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

Yes. In American English it's pronounced /ˈdaɪəˌtɑːmz/ (DEYE-uh-tahmz), while in British English it's /dˈaɪətəmz/ (D-eye-uht).

How to Pronounce "diatoms"

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diatoms

regional

/ˈdaɪəˌtɑːmz/

DEYE-uh-tahmz

Syllable Breakdown

daɪdi·əat·tɑːmzoms

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14