English

Noun

cardinality ‎(plural cardinalities)

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

   The empty set has a cardinality of zero.

2. (data modeling, databases) 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

Translations

See also

• aleph
• cardinal number
• multiplicity