Cardinality

Origin

cardinal + -ity

Full definition of cardinality

Noun

1. (set theory) Of a set, the number of elements it contains.The empty set has a cardinality of zero.
2. (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.

Synonyms

• (in set theory) power

Related terms

• cardinal