Speakur

Word Pronunciation & Dictionary

bell number

Word Rarity Uncommon

Frequency: Zipf frequency 4.55 in modern English

Syllables
bel-l num-ber
IPA
16
Scrabble Score
10
Letters
3
Syllables
7
Unique Chars

Meaning

noun

Any member of a sequence of numbers that count the possible partitions of a set, such that the nth number Bₙ is the number of different ways to partition a set that has exactly n elements.

Etymology

Named after Eric Temple Bell, who wrote about them in the 1930s.

Inflected Forms

Bell numbers (plural)

Questions

What does bell number mean?
Any member of a sequence of numbers that count the possible partitions of a set, such that the nth number Bₙ is the number of different ways to partition a set that has exactly n elements.
Where does bell number come from?
Named after Eric Temple Bell, who wrote about them in the 1930s.

How to pronounce bell number

  1. Open the pronunciation page — Open the Speakur entry for “bell number”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “bell number”.
  4. Repeat and practice — Say “bell number” aloud, matching stress and vowels until it feels natural.