Poisson 怎么读

Poisson 在英语中的标准读法是 「PWAH sawn」（/ˈpwɑsɒn/）。

The 'oi' is French /wa/, so the first syllable is PWAH, not POY: PWAH-sawn. Named after French mathematician Siméon Denis Poisson. Wiktionary gives General American /ˈpwɑ.sɒn/ (no vowel-length mark) and RP /ˈpwɑː.sɒn/ ~ /ˈpwɑː.sɒ̃/ (the ː length and nasalized ending are RP, not GA). The dominant developer/student error is the fully anglicized POY-sun rhyming with 'poison', which is why the term reliably trips people in stats, queueing theory, and event-rate modeling. Educated stats usage converges on PWAH-sawn, so consensus rather than truly contested.

其他读法：

• 「pwah SOHN (nasal)」 /pwɑːˈsɔ̃/

来源：Wiktionary — Poisson (English IPA)

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