car·​di·​nal·​i·​ty | \ ˌkär-də-ˈna-lə-tē How to pronounce cardinality (audio) \
plural cardinalities

Definition of cardinality

: the number of elements in a given mathematical set

Examples of cardinality in a Sentence

Recent Examples on the Web In an ephemeral world of shifting clouds and infinite cardinality, the need to grasp some human sense of observability is key to our operational lifeblood. Adrian Bridgwater, Forbes, "Splunk Distills Cloud Observability From Ephemeral Infinity," 7 May 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cardinality.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of cardinality

1935, in the meaning defined above

History and Etymology for cardinality

cardinal entry 1 + -ity

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Time Traveler for cardinality

Time Traveler

The first known use of cardinality was in 1935

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Statistics for cardinality

Last Updated

12 May 2021

Cite this Entry

“Cardinality.” Dictionary, Merriam-Webster, Accessed 15 May. 2021.

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More from Merriam-Webster on cardinality

Britannica English: Translation of cardinality for Arabic Speakers

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