WordReference.com |

Online Language Dictionaries

English Dictionary | aleph-null

Forums

- See Also:
- - Aleman Lacayo
  - Alemanni
  - Alemannic
  - Alembert
  - Alembert, d'
  - alembic
  - Alençon
  - Alençon lace
  - Alene
  - aleph
  - aleph-null
  - Aleppo
  - Aleppo gall
  - Aleppo grass
  - Aleppo pine
  - alerce
  - alerion
  - alert
  - alesc
  - Alesia
  - Alessandra
- Recent searches:
- View All

aleph-null

ⓘ One or more forum threads is an exact match of your searched term

in Spanish | in French | in Italian | English synonyms | English Usage | Conjugator | in context | images

WordReference Random House Unabridged Dictionary of American English © 2025

a•leph-null n. [Math.]

the cardinal number of the set of all positive integers; the smallest transfinite cardinal number. Also called a•leph-ze•ro

1905–10

Collins Concise English Dictionary © HarperCollins Publishers::

aleph-null, aleph-zero

the smallest infinite cardinal number; the cardinal number of the set of positive integers

Forum discussions with the word(s) "aleph-null" in the title:

No titles with the word(s) "aleph-null".

Visit the English Only Forum.
Help WordReference: Ask in the forums yourself.

Look up "aleph-null" at Merriam-Webster
Look up "aleph-null" at dictionary.com

Go to Preferences page and choose from different actions for taps or mouse clicks.

In other languages: Spanish | French | Italian | Portuguese | Romanian | German | Dutch | Swedish | Russian | Polish | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic

Links: ⚙️Preferences | Abbreviations | Pron. Symbols | Privacy Policy | Terms of Service | Support WR | Forums | Suggestions

Advertisements

Advertisements

Report an inappropriate ad.
WordReference.com WORD OF THE DAY GET THE DAILY EMAIL!

Become a WordReference Supporter to view the site ad-free.