How do you pronounce "bacillus"?

In American English: /bəˈsɪləs/ (buh-SIL-uhs). In British English: /bˈasɪləs/ (B-as). In Canadian English: /bəˈsɪləs/ (buh-SIL-uhs). In Australian English: /bˈasɪləs/ (B-as).

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

Yes. In American English it's pronounced /bəˈsɪləs/ (buh-SIL-uhs), while in British English it's /bˈasɪləs/ (B-as).

How to Pronounce "bacillus"

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bacillus

regional

/bəˈsɪləs/

buh-SIL-uhs

Syllable Breakdown

bəba·sɪlcil·əslus

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14