Standard Lemma guide

Poisson

name · noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /ˈpwɑː.sɒn/
  • Received-Pronunciation: /ˈpwɑː.sɒ̃/
  • General-American: /ˈpwɑ.sɒn/
  • CMU ARPABET: P OY1 Z S AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

name

Meaning 1

A surname in French

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The Poisson distribution.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Unadapted borrowing from French Poisson. The noun sense is named after French mathematician Siméon Denis Poisson (1781–1840).

Real reading context

Poisson in complete knowledge articles