\ ˈä-ˌlef-ˈnəl
, -ləf- \
, -ləf- \
Definition of aleph-null
: the number of elements in the set of all integers which is the smallest transfinite cardinal number
Learn More About aleph-null
Statistics for aleph-null
Look-up Popularity
Cite this Entry
“Aleph-null.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aleph-null. Accessed 10 Aug. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Words Named After People
-
- Namesake of the leotard, Jules Léotard had what profession?
Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Name That Animal: Volume 2
Can you tell a meerkat from a wombat?
Take the quiz
-
Fashionable Words
A vocab quiz with panache
Take the quiz
-
How Strong Is Your Vocabulary?
Test your vocabulary with our 10-question quiz!
Take the quiz
-
Spelling Bee Quiz
Can you outdo past winners of the National Spelli...
Take the quiz
Share aleph-null
Time Traveler for aleph-null
The first known use of aleph-null was circa 1909
See more words from the same year