Cardinality Definition

noun

(set theory) Of a set, the number of elements it contains.

The empty set has a cardinality of zero.
Wiktionary

(data modeling) The property of a relationship between a database table and another one, specifying whether it is one-to-one, one-to-many, many-to-one, or many-to-many.

Wiktionary

Other Word Forms of Cardinality

Noun

Singular:
cardinality
Plural:
cardinalities

Origin of Cardinality

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cardinality